Understanding Childhood Asthma

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Questions and Answers

Which of the following is NOT a common trigger for asthma?

  • Low humidity (correct)
  • House dust mites
  • Cold air
  • Exercise

Which symptom is most characteristic of an asthma exacerbation?

  • Productive cough with thick mucus
  • Wheezing (correct)
  • Fever
  • Slow heart rate

Which of the following Pulmonary Function Test (PFT) values is typically decreased in patients with asthma?

  • Total Lung Capacity (TLC)
  • Functional Residual Volume (FRV)
  • Residual Volume (RV)
  • Forced Expiratory Volume in 1 second (FEV1) (correct)

Which of the following is the only lab result that often increases for asthma patients?

<p>Functional Residual Volume (FRV) (D)</p> Signup and view all the answers

Asthma is classified as which type of lung disease?

<p>Obstructive lung disease (A)</p> Signup and view all the answers

A patient with asthma uses a short-acting beta agonist (SABA) more than two times a week for symptom control but not daily. According to asthma severity classifications, how would this be classified?

<p>Mild Persistent (A)</p> Signup and view all the answers

Which feature is most indicative of status asthmaticus?

<p>Persistent shortness of breath not responsive to conventional treatment (A)</p> Signup and view all the answers

Which of the following medications is most likely to exacerbate asthma symptoms in certain individuals?

<p>Non-Selective Beta Blockers (A)</p> Signup and view all the answers

Why does hyperinflation of the lungs occur in asthma?

<p>Trapped air due to narrowed airways (A)</p> Signup and view all the answers

An atopic individual with allergic rhinitis is at a higher risk of developing asthma due to which factor?

<p>Genetic predisposition and hypersensitivity (B)</p> Signup and view all the answers

A patient's asthma symptoms worsen primarily during the early morning hours. What is the MOST likely contributing factor to this phenomenon?

<p>Delayed reaction to triggers encountered during the day (C)</p> Signup and view all the answers

Exposure to textile dusts in an occupational setting is MOST likely to trigger asthma due to which mechanism?

<p>Acting as a bronchial irritant (B)</p> Signup and view all the answers

Which of the following best describes the role of airway remodeling in asthma?

<p>Structural changes in the airway (D)</p> Signup and view all the answers

A patient with asthma has an FEV1/FVC ratio of 65% and an FEV1 of 60% predicted. How would their lung function be categorized?

<p>Moderate (B)</p> Signup and view all the answers

A 12-year-old patient experiences asthma symptoms daily, nighttime awakenings more than once a week (but not nightly), and uses a short-acting beta-agonist daily. How would you classify the severity of their asthma?

<p>Moderate Persistent (A)</p> Signup and view all the answers

A patient is diagnosed with asthma after presenting with shortness of breath, wheezing, and chest tightness. Which of the following factors would suggest that their asthma is atopic in nature?

<p>Family history of asthma and allergic rhinitis (C)</p> Signup and view all the answers

In asthma, how does the change in mucociliary function contribute to airway obstruction?

<p>Impairs clearance of mucus and debris (D)</p> Signup and view all the answers

Which of the following is the MOST accurate explanation for why anxiety and hard laughter can trigger asthma symptoms?

<p>They lead to rapid changes in breathing patterns (B)</p> Signup and view all the answers

Why should pharmacists advise asthma patients to check food and drink labels for sulfites?

<p>Sulfites can trigger allergic reactions and asthma symptoms (B)</p> Signup and view all the answers

What is the underlying mechanism by which cold air triggers asthma symptoms?

<p>Cold air induces bronchoconstriction and airway inflammation. (B)</p> Signup and view all the answers

A patient experiencing persistent shortness of breath, inability to speak in full sentences, and bluish discoloration of the lips may be suffering from which severe asthma condition?

<p>Status Asthmaticus (B)</p> Signup and view all the answers

A researcher is investigating new asthma therapies. They hypothesize that increased levels of a certain cytokine, Cytokine X, are directly correlated with the severity of airway hyperreactivity. If proven correct, which of the following downstream effects of Cytokine X would MOST directly explain the increased bronchial sensitivity?

<p>Enhanced activity of the parasympathetic nervous system leading to increased acetylcholine release at bronchial smooth muscle (B)</p> Signup and view all the answers

A new asthma medication works by selectively inhibiting phosphodiesterase-4 (PDE4) in airway smooth muscle cells. Which of the following is the MOST likely mechanism by which this medication would improve asthma symptoms?

<p>Decreased breakdown of cAMP, leading to bronchodilation (B)</p> Signup and view all the answers

A scientist is studying the effects of chronic allergen exposure on airway remodeling in a mouse model of asthma. They observe a significant increase in collagen deposition within the airway walls. Which of the following cell types is the MOST likely primary source of this excess collagen?

<p>Fibroblasts (C)</p> Signup and view all the answers

In a complex interplay of cellular signaling, a novel therapeutic approach aims to restore normal mucociliary clearance in severe asthmatics by targeting a specific transcription factor that regulates the expression of mucin genes. Which of the following transcription factors, when inhibited, would MOST directly lead to a reduction in mucus hypersecretion and improved airway clearance?

<p>Signal transducer and activator of transcription 6 (STAT6) (B)</p> Signup and view all the answers

Which of the following is the primary mechanism of action of beta-agonists in treating asthma?

<p>Stimulating beta adrenergic receptors, leading to bronchodilation. (D)</p> Signup and view all the answers

A patient with asthma also has a history of tachycardia. Which type of beta-agonist would be MOST appropriate for managing their asthma?

<p>Selective beta-2 adrenergic agonists like albuterol. (C)</p> Signup and view all the answers

Which of the following is a potential adverse effect associated with the use of non-selective beta-adrenergic agonists?

<p>Cardiac arrhythmias. (B)</p> Signup and view all the answers

Which of the following best describes the mechanism by which methylxanthines, such as theophylline, induce bronchodilation?

<p>Inhibition of phosphodiesterase (PDE), increasing cAMP levels. (C)</p> Signup and view all the answers

A patient is prescribed theophylline for asthma. What dietary advice should the pharmacist provide to avoid potential interactions?

<p>Maintain a consistent level of caffeine consumption. (C)</p> Signup and view all the answers

What is the primary mechanism of action of anticholinergic drugs in the treatment of asthma?

<p>Blocking muscarinic receptors, preventing bronchoconstriction. (B)</p> Signup and view all the answers

Ipratropium bromide is often preferred over atropine sulfate for asthma treatment due to:

<p>Fewer systemic adverse effects. (D)</p> Signup and view all the answers

Which of the following is the primary mechanism of action of mast cell stabilizers in asthma management?

<p>Preventing the release of inflammatory mediators from mast cells. (C)</p> Signup and view all the answers

A patient is prescribed cromolyn for exercise-induced asthma. When should the patient administer this medication for it to be most effective?

<p>15-20 minutes before exercise. (B)</p> Signup and view all the answers

Which of the following best describes the mechanism of action of corticosteroids in the treatment of asthma?

<p>Reducing inflammation by inhibiting the production of inflammatory mediators. (C)</p> Signup and view all the answers

Why is it important for patients to rinse their mouth with water after using inhaled corticosteroids?

<p>To prevent oropharyngeal candidiasis (oral thrush). (C)</p> Signup and view all the answers

What is the primary mechanism of action of leukotriene receptor antagonists in asthma treatment?

<p>Blocking leukotrienes from interacting with their receptors. (B)</p> Signup and view all the answers

Which of the following adverse effects is specifically associated with leukotriene receptor antagonists like zafirlukast and montelukast?

<p>Churg-Strauss syndrome. (A)</p> Signup and view all the answers

What is the mechanism of action of zileuton in the treatment of asthma?

<p>Inhibiting 5-lipoxygenase, preventing leukotriene synthesis. (C)</p> Signup and view all the answers

Which of the following is a potential mechanism by which nitric oxide donors might benefit patients with asthma?

<p>Relaxing airway smooth muscle. (B)</p> Signup and view all the answers

A patient with asthma and a history of glaucoma is prescribed ipratropium bromide. What counseling point is MOST important to discuss with the patient?

<p>The medication may worsen glaucoma symptoms. (B)</p> Signup and view all the answers

A patient taking systemic corticosteroids for asthma develops a persistent oral fungal infection. What is the MOST appropriate course of action?

<p>Prescribe an antifungal medication and continue the corticosteroids. (B)</p> Signup and view all the answers

Why are long-acting beta-agonists (LABAs) like salmeterol and formoterol, indicated for continuous sleep in asthma patients?

<p>They offer prolonged bronchodilation, preventing nighttime awakenings. (D)</p> Signup and view all the answers

A patient reports experiencing skeletal muscle tremors after starting albuterol. Which of the following best describes the mechanism behind this adverse effect?

<p>Activation of beta-2 adrenergic receptors. (D)</p> Signup and view all the answers

Which statement accurately describes the role of theophylline in asthma management compared to beta-agonists and inhaled corticosteroids?

<p>Theophylline has a narrow therapeutic index and is generally not preferred due to its potential side effects. (A)</p> Signup and view all the answers

A patient with asthma is also being treated for hypertension with a non-selective beta-blocker. What potential drug interaction should the healthcare provider be aware of?

<p>Decreased effectiveness of the asthma medication and potential bronchospasm. (A)</p> Signup and view all the answers

Why are inhaled corticosteroids considered a cornerstone of asthma management, even in children with mild to moderate persistent asthma?

<p>They reduce airway inflammation, a key component of asthma. (A)</p> Signup and view all the answers

Which of the following is the MOST important counseling point for a patient starting on inhaled beclomethasone to minimize the risk of adverse effects?

<p>Rinse the mouth with water after each use. (B)</p> Signup and view all the answers

A patient with asthma also has allergic rhinitis. Which class of medications is likely to address both conditions?

<p>Leukotriene receptor antagonists. (A)</p> Signup and view all the answers

A patient with severe asthma is prescribed oral prednisone. What is the MOST crucial monitoring parameter due to the long term adverse effects of this medication?

<p>Blood glucose levels. (D)</p> Signup and view all the answers

A researcher is investigating a new drug that selectively targets M3 muscarinic receptors in the airway. What would be the MOST likely effect of this drug on asthma symptoms?

<p>Bronchodilation. (B)</p> Signup and view all the answers

A patient with asthma is prescribed both inhaled fluticasone and salmeterol in a combination inhaler. What is the primary rationale for combining these two medications?

<p>To provide both long-term control of inflammation and bronchodilation. (B)</p> Signup and view all the answers

Which of the following best explains the utility of using a spacer device with a metered-dose inhaler (MDI) for asthma medication?

<p>It reduces oropharyngeal deposition and improves lung delivery of the medication. (C)</p> Signup and view all the answers

A young child with persistent asthma symptoms is prescribed montelukast granules. What is the MOST important instruction regarding the administration of this medication?

<p>Mix the granules with a spoonful of applesauce or other soft food. (C)</p> Signup and view all the answers

A patient with asthma is considering using an air purifier in their home. Which type of air purifier would be MOST effective in removing common asthma triggers like pollen and dust mites?

<p>An air purifier with a HEPA filter. (A)</p> Signup and view all the answers

Which of the following is the MOST likely symptom experienced by a patient who has recently been prescribed theophylline?

<p>Insomnia. (B)</p> Signup and view all the answers

What is the rationale for using epinephrine as a treatment for anaphylaxis in a patient with severe allergies?

<p>Epinephrine reverses bronchoconstriction and increases heart rate, counteracting the effects of anaphylaxis. (A)</p> Signup and view all the answers

A researcher is investigating the effects of a novel asthma drug that enhances cyclic AMP levels in bronchial smooth muscle cells without directly activating adenylate cyclase. Which of the following mechanisms is the MOST likely mode of action of this drug?

<p>Inhibition of phosphodiesterase (PDE). (B)</p> Signup and view all the answers

A patient with a history of asthma and seasonal allergies presents to the pharmacy. They mention that their asthma symptoms worsen during ragweed season. Which of the following medications would be the MOST appropriate for long-term preventative use?

<p>Inhaled corticosteroid (e.g., fluticasone). (C)</p> Signup and view all the answers

Which of the following medications is MOST likely to cause tachycardia as a side effect?

<p>Albuterol. (C)</p> Signup and view all the answers

Which of the following medications is used to treat acute asthma symptoms?

<p>Albuterol. (B)</p> Signup and view all the answers

Montelukast is administered via which route?

<p>PO. (B)</p> Signup and view all the answers

What is the primary mechanism by which omalizumab alleviates asthma symptoms?

<p>Preventing IgE from binding to mast cells, thus inhibiting histamine release. (C)</p> Signup and view all the answers

A patient with allergic asthma is prescribed omalizumab. How is this medication typically administered?

<p>Subcutaneously, once or twice a month (B)</p> Signup and view all the answers

In the acute management of a sudden asthma attack, which class of medications is MOST appropriate?

<p>Short-Acting Beta Agonists (C)</p> Signup and view all the answers

A 15-year-old patient experiences daily cough and chest tightness, and wakes twice a week with symptoms. Spirometry shows an FEV1/FVC ratio of 78% and FEV1 at 80% predicted. According to asthma severity classifications, what is the MOST appropriate initial treatment step?

<p>Low-dose ICS + LABA or Medium-dose ICS (B)</p> Signup and view all the answers

A 28-year-old woman experiences coughing and wheezing twice weekly, with nighttime awakenings three times a month. Her FEV1 is 82% of predicted, and her activities are not limited. What is the BEST classification of her asthma?

<p>Mild Persistent Asthma (D)</p> Signup and view all the answers

For the 28-year-old woman with mild persistent asthma (described in the previous question), which of the following is the preferred initial treatment?

<p>Low-dose ICS (B)</p> Signup and view all the answers

Which statement is MOST accurate regarding asthma diagnosis and treatment in children younger than 5 years?

<p>Inhaled corticosteroids are the preferred treatment option. (C)</p> Signup and view all the answers

Why might asthma treatment plans need adjustment, specifically for older adults?

<p>Potential interactions with other medications they are taking. (A)</p> Signup and view all the answers

Which strategy is MOST appropriate for managing exercise-induced asthma?

<p>Easing into physical activity with a warm-up period. (A)</p> Signup and view all the answers

Why is it important to maintain good asthma control in pregnant women?

<p>To ensure a good supply of oxygen to the baby. (C)</p> Signup and view all the answers

A patient expresses concern about becoming addicted to their asthma inhaler. What is the MOST appropriate response?

<p>Inhalers are not addictive, but regular use helps maintain asthma control. (D)</p> Signup and view all the answers

A patient believes that oral medications are more effective than inhalers for asthma. What fact should be emphasized when counseling this patient?

<p>Inhaled medications deliver the drug directly to the lungs, requiring lower doses and reducing systemic side effects. (C)</p> Signup and view all the answers

A patient is concerned about the steroids in their inhaler causing harmful side effects. What is the MOST accurate information to provide?

<p>The steroid dose in inhalers is significantly lower than in oral steroids, reducing the risk of systemic side effects. (B)</p> Signup and view all the answers

A patient who has been experiencing a persistent cough asks if they can 'catch' asthma from a coworker who has been recently diagnosed. What is the MOST appropriate response?

<p>No, asthma is not infectious and cannot be caught from another person. (A)</p> Signup and view all the answers

Which of the following statements about asthma is a myth?

<p>Asthma is not a fatal condition. (D)</p> Signup and view all the answers

What is the PRIMARY reason for non-responsiveness to asthma therapy?

<p>The patient is experiencing unidentified triggers that lead to asthma flare-ups. (C)</p> Signup and view all the answers

How does smoking impact asthma?

<p>Smoking worsens asthma outcomes and increases the risk of developing asthma. (A)</p> Signup and view all the answers

A patient with poorly coordinated breathing and actuation during MDI use would MOST benefit from which inhaler accessory?

<p>Spacer (A)</p> Signup and view all the answers

A patient who has used a manually-actuated MDI for many years is switched to a dry powder inhaler (DPI). What is the MOST important instruction regarding its use?

<p>The patient needs to breathe in more forcefully compared to MDIs. (A)</p> Signup and view all the answers

A researcher discovers that a novel cytokine, 'Cytokine Z,' plays a pivotal role in the pathophysiology of severe, steroid-resistant asthma. Cytokine Z mediates its effects by upregulating the expression of a chloride channel, resulting in excessive mucus secretion and impaired mucociliary clearance. Which of the following therapeutic strategies represents the MOST promising approach to counteract the effects of Cytokine Z and improve asthma control in these patients?

<p>All of the above. (D)</p> Signup and view all the answers

Which characteristic distinguishes emphysema from chronic bronchitis?

<p>Destruction of alveolar septa (D)</p> Signup and view all the answers

What is the primary role of bronchodilators in COPD management?

<p>Control bronchospasm and relieve dyspnea (B)</p> Signup and view all the answers

A patient with COPD is prescribed theophylline. What is the primary mechanism by which theophylline provides benefit?

<p>Enhances diaphragmatic contractility, increases mucociliary clearance, and stimulates the respiratory drive (A)</p> Signup and view all the answers

A patient with a long history of COPD presents with increased dyspnea, sputum volume, and sputum purulence. Which of the following pharmacological interventions is MOST appropriate?

<p>Prescribe a course of antibiotics (A)</p> Signup and view all the answers

In COPD, what is the rationale for prescribing long-term oxygen therapy?

<p>To increase survival in patients with severe COPD (A)</p> Signup and view all the answers

Which of the following best describes the role of inhaled corticosteroids (ICS) in COPD management?

<p>Added to inhaled bronchodilators in patients with severe COPD and frequent exacerbations (B)</p> Signup and view all the answers

What is the MOST important intervention to prevent the progression of COPD?

<p>Smoking cessation (C)</p> Signup and view all the answers

A patient with COPD is diagnosed with alpha1-antitrypsin deficiency. How does this genetic factor contribute to the development of COPD?

<p>Elastin breakdown (D)</p> Signup and view all the answers

According to the GOLD classification, a patient with an FEV1 > 80% predicted and an FEV1/FVC < 70% would be classified as having which stage of COPD?

<p>Stage I - Mild COPD (B)</p> Signup and view all the answers

Which of the following is a characteristic finding in emphysema?

<p>Destruction of alveolar walls (D)</p> Signup and view all the answers

What is the primary mechanism by which smoking contributes to COPD?

<p>Oxidative stress and elastin breakdown (B)</p> Signup and view all the answers

Which of the following vaccines is recommended annually for all patients with COPD?

<p>Influenza vaccine (B)</p> Signup and view all the answers

A patient with COPD is using a short-acting bronchodilator every 6 hours. According to the treatment guidelines, what is the next appropriate step in pharmacological management?

<p>Initiate a long-acting bronchodilator (C)</p> Signup and view all the answers

Which of the following is NOT a goal of COPD management?

<p>To improve lung function to normal levels (C)</p> Signup and view all the answers

A patient with COPD asks about the role of mucolytics in their treatment regimen. What is the MOST accurate explanation you can provide?

<p>They help to improve sputum clearance and disrupt mucus plugs. (C)</p> Signup and view all the answers

Which of the following medications used in COPD treatment works by inhibiting the contraction of bronchial smooth muscle and reducing sputum volume?

<p>Anticholinergics (B)</p> Signup and view all the answers

Compared to asthma management, how does COPD pharmacological treatment differ?

<p>Combination therapy is often needed from the start in COPD. (D)</p> Signup and view all the answers

A researcher is developing a new drug targeting neutrophils in COPD. What effect would indicate the drug's therapeutic potential?

<p>Reduced levels of proteases in the lung (B)</p> Signup and view all the answers

A patient with chronic bronchitis asks about measures, besides medication, to help manage their condition. What is MOST appropriate to suggest?

<p>Practicing bronchopulmonary drainage and postural drainage (D)</p> Signup and view all the answers

Besides smoking, occupational exposure is a known cause of COPD. Which occupational exposure is LEAST likely to contribute to COPD?

<p>Exposure to fungal spores (D)</p> Signup and view all the answers

A researcher is conducting a study on the inflammatory processes in COPD and discovers a novel receptor, Receptor X, that is highly expressed on airway epithelial cells of COPD patients. Activation of Receptor X leads to increased mucus secretion and airway inflammation. Which of the following therapeutic strategies would be MOST promising for treating COPD by targeting Receptor X?

<p>A Receptor X antagonist combined with a mucolytic (D)</p> Signup and view all the answers

What is the primary reason COPD is largely irreversible?

<p>Alveolar structure damage (A)</p> Signup and view all the answers

How does increased mucus production lead to impaired lung function in chronic bronchitis?

<p>Obstructing airflow and trapping pathogens (C)</p> Signup and view all the answers

Which cellular process is MOST directly affected by alpha1-antitrypsin deficiency in the pathogenesis of emphysema?

<p>Protease-antiprotease balance (C)</p> Signup and view all the answers

A scientist isolates a unique protein present in the lungs of individuals with severe COPD and finds it inhibits the action of histone deacetylase 2 (HDAC2). Based on this finding, which downstream effect is MOST likely contributing to the disease pathology?

<p>Increased NF-kB-mediated inflammation (D)</p> Signup and view all the answers

Which receptor type is primarily triggered by inert dusts and foreign bodies in the upper airways?

<p>Mechanoreceptors (D)</p> Signup and view all the answers

Which characteristic is associated with a productive cough?

<p>Production of sputum with viscous-elastic properties (C)</p> Signup and view all the answers

What is the primary mechanism of action of N-acetylcysteine (NAC) as a mucolytic agent?

<p>Breaking disulfide bonds in mucoprotein molecules (B)</p> Signup and view all the answers

Which of the following is NOT an indication for the use of N-acetylcysteine (NAC)?

<p>Bronchospasm (B)</p> Signup and view all the answers

What is the primary mechanism of action of expectorants like guaifenesin?

<p>Stimulating gastric receptors to increase mucus secretion (A)</p> Signup and view all the answers

Which of the following best describes the mechanism of peripherally acting antitussives?

<p>Decreasing the sensitivity of sensory receptors in the upper respiratory tract (A)</p> Signup and view all the answers

What is the primary mechanism by which centrally acting antitussives suppress cough?

<p>By increasing the threshold for cough stimulus at the cough center in the medulla (A)</p> Signup and view all the answers

Which of the following is a common adverse effect associated with codeine?

<p>Respiratory depression (A)</p> Signup and view all the answers

Which of the following is true regarding dextromethorphan compared to codeine?

<p>Dextromethorphan is synthetic and non-narcotic. (A)</p> Signup and view all the answers

What is the primary mechanism behind diphenhydramine's antitussive effect?

<p>Anticholinergic activity (D)</p> Signup and view all the answers

What is the primary mechanism behind the soothing effect of demulcents on an irritated throat?

<p>Promoting salivary flow to lubricate and soothe irritated tissues (A)</p> Signup and view all the answers

What is the most common cause of the common cold?

<p>Viral infection (B)</p> Signup and view all the answers

What is the primary mechanism of action of adrenergic decongestants?

<p>Stimulating alpha-adrenergic receptors, causing vasoconstriction (C)</p> Signup and view all the answers

What is the primary mechanism of action of nasal steroids in treating nasal congestion?

<p>Anti-inflammatory effect, reducing inflammation and congestion (C)</p> Signup and view all the answers

What is the main disadvantage of using topical decongestants for more than 3-5 days?

<p>Rhinitis medicamentosa (rebound congestion) (B)</p> Signup and view all the answers

Why are oral decongestants generally avoided in patients with hypertension?

<p>They can cause vasoconstriction, raising blood pressure (A)</p> Signup and view all the answers

Which of the following best describes the mechanism of action of antihistamines in treating cold symptoms?

<p>Blocking H1 receptors to relieve itching, sneezing, and runny nose (A)</p> Signup and view all the answers

Which of the following is a common anticholinergic side effect associated with antihistamine use?

<p>Dry mouth (B)</p> Signup and view all the answers

Which of the following is NOT an appropriate use for analgesics in the treatment of a cold?

<p>Treating bacterial infection (A)</p> Signup and view all the answers

A patient with a cold is coughing up thick, greenish phlegm and has a fever greater than 38.3°C. What is the MOST appropriate course of action?

<p>Seek medical follow-up. (B)</p> Signup and view all the answers

A patient has been experiencing cold-like symptoms for 8 days without improvement. What is the MOST appropriate course of action?

<p>Seek medical follow-up. (D)</p> Signup and view all the answers

A patient with a known allergy to aspirin is experiencing muscle aches and fever associated with a cold. Which analgesic would be MOST appropriate?

<p>Acetaminophen (C)</p> Signup and view all the answers

Which strategy is BEST for preventing the spread of cold viruses?

<p>Frequent handwashing and avoiding close contact with infected individuals (A)</p> Signup and view all the answers

A researcher is investigating a novel compound that selectively inhibits the activity of mechanoreceptors in the upper airways. What is the MOST likely therapeutic outcome of this compound?

<p>Suppressed cough reflex triggered by dust and foreign bodies (B)</p> Signup and view all the answers

A patient with a chronic productive cough is being considered for long-term mucolytic therapy. Which factor would be MOST important to assess before initiating treatment?

<p>Ability to maintain adequate hydration (B)</p> Signup and view all the answers

A researcher is investigating a novel drug that selectively enhances the mucociliary transport system in patients with chronic bronchitis by increasing the number and activity of cilia. Which downstream effect would be MOST likely observed?

<p>Reduced airway inflammation and decreased mucus retention (C)</p> Signup and view all the answers

A patient with frequent non-productive coughs is prescribed a combination medication containing dextromethorphan and guaifenesin. What is the MOST appropriate rationale for prescribing these medications together?

<p>There is no rational for the combination. This is poor prescribing. (C)</p> Signup and view all the answers

A researcher is studying the effects of a novel compound on the common cold and discovers that it inhibits viral replication by targeting a specific viral protease. However, the compound also causes significant vasodilation in the nasal passages, leading to increased congestion. Which strategy would be MOST effective in mitigating the adverse effect of increased congestion while preserving the antiviral activity?

<p>Administering the compound with a topical decongestant to constrict nasal blood vessels (D)</p> Signup and view all the answers

Which of the following statements regarding antibiotic use in the treatment of the common cold is TRUE?

<p>Antibiotics should be reserved for bacterial co-infections and not for the primary cold itself because viruses cause the common cold. (A)</p> Signup and view all the answers

Which of the following is the primary immunological mechanism underlying allergic rhinitis?

<p>An IgE-mediated hypersensitivity reaction. (A)</p> Signup and view all the answers

A patient presents with symptoms of allergic rhinitis. Which symptom is LEAST likely to be effectively relieved by antihistamines?

<p>Nasal congestion (B)</p> Signup and view all the answers

Which of the following is the MOST accurate description of perennial allergic rhinitis?

<p>Symptoms are chronic and persistent throughout the year. (C)</p> Signup and view all the answers

A patient with allergic rhinitis is also pregnant. Which of the following medications is generally considered the safest first-line option for managing her symptoms of sneezing and rhinorrhea?

<p>Mast cell stabilizers (A)</p> Signup and view all the answers

Which of the following is the MOST common adverse effect associated with intranasal ipratropium bromide?

<p>Nasal dryness and irritation (C)</p> Signup and view all the answers

What is the primary mechanism of action of intranasal steroids in treating allergic rhinitis?

<p>Reducing inflammation by inhibiting multiple inflammatory mediators (B)</p> Signup and view all the answers

A patient complains of a bitter taste after using an antihistamine nasal spray. Which of the following medications is MOST likely causing this adverse effect?

<p>Azelastine (C)</p> Signup and view all the answers

Which of the following physical signs is commonly associated with allergic rhinitis?

<p>Allergic salute (B)</p> Signup and view all the answers

What is the PRIMARY rationale for using a combination of an antihistamine and a decongestant in treating allergic rhinitis?

<p>To address both nasal congestion and other allergic symptoms (A)</p> Signup and view all the answers

For which of the following allergic rhinitis symptoms is intranasal ipratropium bromide MOST likely to provide relief?

<p>Rhinorrhea (D)</p> Signup and view all the answers

A Patient is seeking a more holistic approach to managing their perennial allergic rhinitis. Which immunotherapy is injected subcutaneously?

<p>Subcutaneous (B)</p> Signup and view all the answers

Which of the following statements accuratley describes the MOA of mast cell stabilizers?

<p>Inhibits the release of histamine (A)</p> Signup and view all the answers

Which of the following is a specific disadvantage of immunotherapy compared to pharmacologic treatment for allergic rhinitis?

<p>Higher cost and longer duration of treatment. (C)</p> Signup and view all the answers

Which class of medications used for allergic rhinitis is MOST likely to cause rebound congestion (rhinitis medicamentosa) with prolonged use?

<p>Topical decongestants (B)</p> Signup and view all the answers

Besides the nose, what other area can ophthalmic antihistamine agents treat?

<p>Eyes (A)</p> Signup and view all the answers

A researcher is investigating novel therapies for allergic rhinitis by targeting specific immune cells. Which of the following approaches would MOST directly address the underlying cause of allergic rhinitis?

<p>Creating a monoclonal antibody that blocks IgE binding to mast cells (D)</p> Signup and view all the answers

A scientist is studying novel approaches to prevent the progression of allergic rhinitis to asthma in children. Which of the following interventions would be MOST likely to achieve this goal?

<p>Initiating allergen immunotherapy early in life (B)</p> Signup and view all the answers

A patient with severe perennial allergic rhinitis has failed to respond adequately to multiple treatments, including antihistamines, intranasal steroids, and decongestants. The patient is now considering immunotherapy. Which factor would MOST strongly contraindicate the use of subcutaneous immunotherapy?

<p>A previous episode of anaphylaxis to bee stings (B)</p> Signup and view all the answers

A team of researchers discovers a novel gene that is selectively expressed in the nasal epithelium of individuals with severe allergic rhinitis. This gene encodes a protein that enhances the production of inflammatory cytokines in response to allergen exposure. Which therapeutic strategy would MOST directly target this newly identified pathway?

<p>Developing a small molecule inhibitor that blocks the activity of the protein encoded by the novel gene (B)</p> Signup and view all the answers

Healthcare providers need to be prepared to handle anaphlyaxis shock induced by immunotherapy. Which dose concentration should be administered to prevent this allergic reaction?

<p>Adjust the dose; given in progression (A)</p> Signup and view all the answers

Flashcards

Atopic Asthma

An atopic disease with hereditary and hypersensitive components, often starting in childhood.

Asthma Triggers

Cold air, exercise, allergens, smoke, and stress that can trigger asthma symptoms.

Asthma Symptoms

Shortness of breath, wheezing, chest tightness, and coughing, often worse at night or early morning.

Forced Expiratory Volume (FEV)

Amount of air forcibly expired in one second, decreased in asthma.

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Peak Expiratory Flow Rate (PEFR)

Rate of air flow during exhalation, also decreased in asthma.

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Hyperinflation of the Lungs

Air trapped in the lungs due to narrowed airways.

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Functional Residual Volume (FRV)

Volume of air remaining in lungs after a normal exhale; increases in asthma.

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Inspiratory Reserve Volume/Capacity (IRV/IRC)

Maximal volume of air that can be inhaled from the end-inspiratory level; decreases in asthma.

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Obstructive Lung Disease

Characterized by airway narrowing, hindering complete air expulsion.

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Restrictive Lung Disease

Lungs' inability to fully expand during inhalation.

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Asthma (Type of Lung Disease)

Chronic obstructive lung disease characterized by airway inflammation and hyperreactivity.

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Asthma Characteristics

Airway inflammation, bronchial hyperreactivity, and airway obstruction.

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Asthma Severity Levels

Intermittent, mild persistent, moderate persistent, and severe persistent.

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Status Asthmaticus

A severe, prolonged asthma attack unresponsive to typical treatment.

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Status Asthmaticus Symptoms

Persistent shortness of breath, inability to speak in complete sentences, bluish discoloration, and confusion.

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Hereditary

Parents who have asthma

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Childhood Infections

Respiratory infections during childhood

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Common Allergens

Pollens, house dust mites, animal dander, mold and food

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Bronchial Irritants

Cigarette smoke, air pollution and chemicals

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Medicines for Asthma Trigger

NSAIDs and Non-Selective Beta Blockers

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Nocturnal Symptoms

Night time or early morning hours

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Wheezing

High-pitched sound during inhalation

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Breathing Effort

Increase work needed to breathe

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Tachycardia

Increased heart rate

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Mucus in Airways

Excessive secretion of mucus, contributing to airway narrowing

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Bronchodilators

Medications that cause dilation of the bronchioles, easing breathing difficulties.

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Beta-Agonists

Class of bronchodilator drugs which stimulate beta-adrenergic receptors, relaxing bronchial smooth muscle.

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Antimuscarinic Agents

Class of bronchodilator drugs which act by blocking acetylcholine receptors, reducing bronchoconstriction and bronchial secretions.

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Methylxanthines

Class of bronchodilator drugs that increase cAMP levels, leading to bronchodilation, but are less preferred due to side effects

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Anti-inflammatory Drugs

Medications that target and reduce inflammation in the airways.

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Corticosteroids

Anti-inflammatory drugs that reduce arachidonic acid synthesis and cytokine production.

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Mast Cell Stabilizers

Anti-inflammatory drugs that prevent mast cell degranulation, inhibiting the release of bronchospasm-causing substances.

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Leukotriene Modifiers

Anti-inflammatory drugs that block leukotrienes, reducing bronchoconstriction, mucus production, and airway inflammation.

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Bronchodilators' Relief

Agents that are effective for acute asthma attacks, providing prompt relief by quickly reducing airway constriction and restoring normal airflow.

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Beta-Agonist MOA

Beta-adrenergic receptor stimulation that increases cAMP in bronchial smooth muscles, leading to bronchodilation.

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Non-selective Adrenergics

Adrenergic agonists that act on both alpha and beta receptors, not preferred due to cardiac side effects.

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Non-selective Beta-Adrenergics

Adrenergic agonists that act on both beta 1 & 2 receptors causing bronchodilation, but increasing the heart rate of the patient.

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Selective Beta-Adrenergics

Adrenergic agonists that act selectively on Beta 2 receptors, causing bronchodilation without significant cardiac stimulation.

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Epinephrine

A non-selective adrenergic agonist used for anaphylaxis, but not first-line for asthma due to cardiac effects.

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Ephedrine

A non-selective adrenergic agonist with longer action and more central effects, but lower potency.

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Isoproterenol

A non-selective beta-adrenergic agonist and potent bronchodilator with cardiac arrhythmia risk.

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Selective Beta-Agonists Preference

Selective beta-agonists are drugs of choice for acute asthma and have greater action in β2, active by all routes of administration

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Short vs. Long Acting

This drug classification focuses on determining which drug the patient should take. For continuous sleep or preventing nighttime awakenings, give long-acting medications. Short-acting drugs, on the other hand, are used as rescue or reliever treatments.

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Beta 1 Effects

When administered at high clinical dosages they cause tachycardia, arrhythmias and skeletal muscle tremor.

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Beta Blocker Interaction

Interaction of a beta blocker and beta-agonist may cause bronchospasm and an increase the dose of B-agonist necessary to achieve bronchodilation

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Methylxanthine MOA

Increases cAMP levels by inhibiting phosphodiesterase (PDE), causing bronchodilation, and blocks adenosine receptors.

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Methylxanthines - CNS Effects

Increased alertness, deferral of fatigue, nervousness, insomnia, tremor.

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Methylxanthines - Cardiovascular Effects

Positive chronotropic and inotropic effects, increased heart rate and contraction.

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Methylxanthines Adverse Effects

Nausea, vomiting, GI distress, diarrhea, anorexia, palpitations, tremor, insomnia.

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Methylxanthines - Overdose

Severe nausea and vomiting, hypotension, cardiac arrhythmias, convulsions.

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Anticholinergic MOA

Inhibits effects of acetylcholine by blocking M2 receptors, reversing bronchoconstriction and decreasing bronchial secretions.

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Atropine Sulfate Side Effects

Local drying effect in the mouth, urinary retention, loss of visual accommodation, agitation, tachycardia.

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Ipratropium Bromide

Preferred over atropine sulfate due to lesser systemic adverse effects and used in combination with B-agonists.

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Theophylline (as a Phosphodiesterase Inhibitor)

Increased cAMP levels cause bronchodilation. Inhibits Phosphodiesterase (PDE), preventing cAMP breakdown to AMP therefore increasing cAMP

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Mast-Cell Stabilizers MOA

Prevent release of various substances that cause bronchospasm Has no use in the treatment of acute asthma attacks

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Corticosteroids MOA

Effective anti-inflammatories that reduce arachidonic acid synthesis, inhibit COX-2 expression, and reduce leukotriene and cytokine production.

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Systemic Steroid Contraindications

Systemic fungal infections and persistently positive candida.

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Inhaled Steroids - Precautions

Oropharyngeal candidiasis, pharyngeal irritation, coughing, hoarseness, dry mouth.

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Leukotriene Receptor Antagonists

Asthma medication that prevents leukotrienes from interacting with their receptors, reducing bronchoconstriction, mucosal edema, and mucus hypersecretion.

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Churg-Strauss Syndrome

A clinical syndrome comprising severe asthma associated with eosinophilic vasculitis.

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Lipoxygenase Inhibitor MOA

Inhibits 5-lipoxygenase, preventing leukotriene synthesis.

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Omalizumab

A humanized monoclonal antibody that prevents IgE from binding to mast cells, preventing degranulation and histamine release.

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Sudden Asthma Attack Treatment

Rapid relief for asthma symptoms, delivered by beta-agonists.

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Moderate Persistent Asthma Treatment

Low-dose ICS + LABA or medium-dose ICS.

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Mild Persistent Asthma Treatment

Low-dose ICS, or Cromolyn, LTRA, or theophylline.

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Preferred Asthma Treatment for Children

Inhaled corticosteroids

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Medications to Adjust in Older Adults with Asthma

Beta blockers, aspirin, pain relievers, and anti-inflammatory medicines.

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Exercise-Induced Asthma Management

Warm-up, mask in cold, short-acting beta2-agonists before exercise, and long-term control meds.

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Poor Asthma Control in Pregnant Women Consequences

Inadequate oxygen supply to the baby, increased risk of preeclampsia, premature birth, and low birth weight.

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Inhalers vs. Oral Medications

Inhalers deliver medication directly to the lungs, requiring less medicine and reducing side effects.

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Asthma Cure Myth

Asthma is a chronic disease; stopping meds can lead to frequent, fatal attacks.

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Reasons for Non-Responsiveness to Asthma Therapy

More medication or a different type is needed, unidentified triggers, change to Asthma Action plan.

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Spacer Use Recommendation

Patients with difficulty coordinating or using proper breathing technique.

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Inhaler Types Requiring Forceful Inhalation

Dry powder inhalers

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COPD (Chronic Obstructive Pulmonary Disease)

A set of lung diseases characterized by limited airflow that is not fully reversible, usually progressive, and associated with lung inflammation.

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Emphysema

Permanent abnormal enlargement of air sacs distal to the terminal bronchiole, with destruction of alveolar septa.

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Chronic Bronchitis

Excessive tracheobronchial mucus production causing cough with expectoration for at least 3 months per year for 2 consecutive years.

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Effects of Smoking

Oxidative stress, elastin breakdown, chemoattractant, decreased ciliary function, mucus gland hypertrophy, and DNA damage.

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Air Pollution Impact

Pollutants promote mucus hypersecretion and airway inflammation, accelerating lung function decline.

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Occupational Exposure Impact

Organic/inorganic dust or noxious gases exposure that accelerates the decline in lung function.

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Infection in COPD

Major factor associated with both the etiology and progression of COPD.

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Mild COPD (Stage I)

Characterized by mild airflow limitation (FEV1 > 80%).

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Moderate COPD (Stage II)

Characterized by worsening airflow limitation (50% < FEV1 < 80%).

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Drugs for COPD

Bronchodilators, Corticosteroids, Antibiotics, Mucolytics, Expectorants, Flu vaccine, Oxygen therapy

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Bronchodilator Uses

Control bronchospasm, relieve dyspnea, and increase mucociliary clearance.

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Theophylline MOA

Enhance diaphragmatic contractility, increase mucociliary clearance, and stimulate the respiratory drive.

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Corticosteroids Indications in COPD

Added to the drug regimen after maximal ipratropium bromide and B2-agonist therapy to reduce airway inflammation.

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Antibiotics Indications in COPD

Treat bacterial infection as evidenced by increased sputum volume or changes in color/viscosity.

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Mucolytics Function

May improve sputum clearance and disrupt mucus plugs.

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Expectorants Function

May be used, but evidence of effectiveness is anecdotal

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Oxygen Therapy Benefit

Shown to increase survival when used for more than 15 hours per day in patients with severe COPD.

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Influenza Vaccination

Annually for all patients with COPD.

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Pneumococcal Vaccination

All patients < 65 years with COPD and anyone > 65 years old. All smokers

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Cough Reflex

A physiologic protective reflex that clears the respiratory tract of mucus, irritants, and foreign debris.

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Cough Chemoreceptors

Receptors located in the bronchioles and pulmonary parenchyma, triggered by chemicals and mediators.

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Cough Mechanoreceptors

Receptors located in the upper airways, trachea, and throat; triggered by inert dusts and foreign bodies.

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Non-productive Cough

A cough that does not produce sputum, often caused by allergies, ACE inhibitors, or irritants.

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Productive Cough

A cough that produces mucus (phlegm or sputum), often caused by viral illnesses or infections.

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Mucolytics

Drugs that break up mucus into smaller components, such as N-acetylcysteine and carbocisteine.

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N-Acetylcysteine (NAC)

Breaks down glycoproteins in mucus by breaking disulfide bonds, used for dry cough and as an antidote for acetaminophen poisoning.

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Carbocisteine

Reduces the viscosity of bronchial secretions, facilitating expectoration.

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Expectorants

Drugs that facilitate the removal of mucus and other irritants from the respiratory tract.

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Gastropulmonary Reflex

Stimulates gastric receptors through the vagus nerve to increase mucus secretion from bronchial glands.

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Guaifenesin

A common expectorant that increases fluid flow to decrease the viscosity of bronchial secretions.

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Antitussives

Drugs that inhibit dry, non-productive coughs.

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Peripherally Acting Antitussives

Antitussives that act on sensory receptors in the upper respiratory tract, like menthol and camphor.

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Centrally Acting Antitussives

Antitussives that increase the threshold for cough stimulus in the medulla, including narcotics and non-narcotics.

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Codeine

A centrally acting narcotic antitussive, can cause N/V and constipation.

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Dextromethorphan

A centrally acting non-narcotic antitussive, the D-isomer of a codeine analog.

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Diphenhydramine

Antihistamine that acts centrally to suppress the medullary cough center.

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Demulcents

Substances that soothe an irritated throat and bronchial passageway by promoting salivary flow.

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Common Cold

A benign, self-limiting viral infection with symptoms like sore throat, runny nose, sneezing, and fatigue.

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Nasal Decongestants

Drugs used to relieve nasal congestion, including adrenergics and corticosteroids.

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Adrenergic Decongestants

Stimulate α-adrenergic receptors of vascular smooth muscle, causing vasoconstriction and decreased congestion.

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Nasal Steroids

Anti-inflammatory effect reduces congestion, but can cause immunosuppression.

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Topical Decongestants

Promptly induce vasoconstriction with varying durations of action, but can cause rebound congestion.

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Rhinitis Medicamentosa

Rebound congestion caused by prolonged use of topical decongestants.

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Oral Decongestants

Reaches deep into the nasopharyngeal and sinus passages without rebound congestion, but can cause systemic side effects.

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Antihistamines

Provide relief for sneezing and itching eyes by blocking H1 receptors.

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Analgesics for Colds

Analgesics like aspirin, acetaminophen, ibuprofen, and naproxen sodium are used to treat malaise, fatigue, and headache.

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Allergic Rhinitis

An atopic disease involving inflammation of nasal membranes due to an inappropriate hypersensitivity reaction; has genetic and hypersensitivity components

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Immunologic Reaction in Allergic Rhinitis

IgE-mediated reaction causing inflammation of nasal membranes.

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Allergic Rhinitis Comorbidities

Asthma, sinusitis and otitis media.

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Effects of Mast Cell Mediators

Mucosal edema, watery rhinorrhea, dilation of blood vessels, and stimulation of sensory nerves.

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Triggers of Allergic Rhinitis

Pollens, molds, dust mites, animal dander, and insect allergens.

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Nasal Symptoms of Allergic Rhinitis

Nasal congestion, nasal pruritus, rhinorrhea, and sneezing.

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Other Allergic Rhinitis Symptoms

Conjunctival erythema, lacrimation, ear fullness, post-nasal drip, fatigue, cough, sore throat.

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Allergic salute

Upward rubbing of nose due to nasal pruritus.

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Dennie Morgan Lines

Layers of skin under the eyelids.

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Seasonal Allergic Rhinitis

Symptoms occur intensely during periods of high allergen exposure.

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Perennial Allergic Rhinitis

Symptoms persist throughout the year, regardless of seasonal changes.

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Antihistamines Use in Allergic Rhinitis

Medications that reduce sneezing, nasal pruritus, and rhinorrhea, but not congestion.

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Decongestants

Relieves symptoms of nasal congestion.

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Saline Solution Use in Allergic Rhinitis

Used for irrigation; relief from crusting and soothing.

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Intranasal Steroids

Potent treatment relieving sneezing, nasal pruritus, nasal congestion, and rhinorrhea.

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Intranasal Steroids Indication

All are efficacious in treatment of seasonal allergic rhinitis and prophylaxis of perennial allergic rhinitis

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Ipratropium Bromide (Intranasal)

Reduces rhinorrhea via anticholinergic effect; not for general use in allergic rhinitis.

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Immunotherapy

Medical procedure using controlled allergen exposure to reduce allergy severity; last resort.

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Immunotherapy MOA

Modifies the immune response by desensitizing the immune system to allergens.

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Study Notes

Allergic Rhinitis

  • An atopic disease involving a genetic and hypersensitivity component.
  • Characterized by inflammation of nasal membranes due to an inappropriate hypersensitivity reaction.
  • An IgE-mediated immunologic reaction.
  • Males and females are equally affected.
  • Common comorbidities include asthma, sinusitis, and otitis media.
  • Release of mediators from mast cells leads to mucosal edema.
  • Watery rhinorrhea occurs due to mediator release.
  • Dilation of blood vessels causes sinusoidal filling and nasal congestion.
  • Stimulation of sensory nerves results in nasal itch and sneezing.

Main Triggers (Allergens)

  • Pollens
  • Molds, especially on moist and wood surfaces.
  • Dust mites
  • Animal dander
  • Insect allergens

Nasal Symptoms

  • Nasal congestion
  • Nasal pruritus
  • Rhinorrhea
  • Sneezing

Other Symptoms

  • Conjunctival erythema and pruritus
  • Lacrimation
  • Ear fullness
  • Ear and palate pruritus
  • Post-nasal drip
  • Systemic malaise, fatigue, irritability
  • Cough, sore throat, anosmia, headache
  • Mouth breathing

Other Signs

  • Nasal pruritus
  • Allergic salute (upward rubbing of the nose)
  • Allergic crease (due to repeated allergic salute)
  • Ophthalmic signs: allergic shiners, Dennie Morgan lines (layers of skin under the eyelids)

Types of Allergic Rhinitis

  • Seasonal Allergic Rhinitis: Intense symptoms coincide with high allergen exposure; intermittent symptoms.
  • Perennial Allergic Rhinitis: Symptoms persist year-round, regardless of seasonal changes; chronic and persistent symptoms.

Drugs for Allergic Rhinitis

Antihistamines

  • Reduce sneezing, nasal pruritus, and rhinorrhea, but not congestion.
  • Both 1st and 2nd generation antihistamines are mainstay treatments (e.g., Benadryl, Claritin, Zyrtec).

Azelastine

  • An antihistamine oral spray, with equal efficacy to oral antihistamines.
  • Disadvantages include a bitter taste and higher cost compared to OTC antihistamines.

Ocular Antihistamines

  • Used for ophthalmic conditions associated with allergic rhinitis.
  • Examples: Pheniramine Maleate (Naphcon-A), 1-2 drops TID-QID; Antazoline Phosphate (Vasocon-A), 1-2 drops TID-QID.

Decongestants

  • Effective in relieving symptoms of nasal congestion.
  • Optimal treatment often combines a decongestant with an antihistamine; antihistamines provide relief for all allergic symptoms except congestion.

Mast Cell Stabilizers

  • Stabilize the cell membrane of mast cells, preventing histamine release.
  • Indicated for prophylactic use, starting 2-4 weeks before allergen exposure and continuing throughout contact.
  • Treat all symptoms except nasal congestion.
  • Considered the DOC in pregnancy for sneezing and rhinorrhea.
  • Adverse effects include sneezing, nasal stinging, and irritation.

Saline Solution

  • Used for irrigation; contains no active ingredient
  • Provides relief from crusting and soothing effects.

Intranasal Steroids

  • All are efficacious in treating seasonal allergic rhinitis and prophylaxis of perennial allergic rhinitis.
  • Most potent treatment for allergic rhinitis, with >90% achieving symptomatic relief.
  • Relieve sneezing, nasal pruritus, nasal congestion, and rhinorrhea.
  • Agents: Beclomethasone, Budesonide, Flunisolide, Fluticasone, Triamcinolone.
  • Adverse effects include dryness, burning, stinging, headache, and epistaxis in 5-10% of patients.

Ipratropium Bromide (Intranasal)

  • An anticholinergic drug that reduces rhinorrhea via an anticholinergic effect in patients with perennial rhinitis or the common cold.
  • Promotes airway relaxation.
  • It is not for general use in allergic rhinitis because it has no effect on nasal itching, sneezing, or nasal congestion.
  • Adverse effects include irritation, epistaxis, and crusting.

Immunotherapy

  • A last resort if other treatments fail that uses controlled exposure to known allergens to reduce severity.
  • Recommended for patients who don't respond to pharmacotherapy and environmental modification.
  • Administered via subcutaneous injection regularly for at least 3 years for perennial allergens.

Types of Immunotherapy

  • Subcutaneous
  • Sublingual
  • Intranasal

Immunotherapy Vaccine

  • A mixture of specific, standardized allergen extracts.
  • Requires a compliant patient due to the long duration.
  • Providers must be prepared to handle patients with anaphylaxis, which is prevented by adjusting the dose progressively.

Mode of Action

  • Modifies the immune response and treats the cause rather than the symptoms.
  • Desensitizes the immune system through slow allergen exposure.

Indication and Administration

  • May prevent the progression of rhinitis to asthma in children.
  • May prevent the onset of new sensitization in allergic patients.
  • Also an accepted treatment for allergic asthma, allergic conjunctivitis, and insect sting hypersensitivity.
  • Routine injections of diluted allergen are initially administered, with the antigen concentration increasing over time.

Disadvantages

  • Immunotherapy is a long and costly treatment.

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