Podcast
Questions and Answers
Which medication is categorized as a leukotriene receptor antagonist?
Which medication is categorized as a leukotriene receptor antagonist?
Omalizumab requires administration every 1-2 weeks.
Omalizumab requires administration every 1-2 weeks.
False
What is the normal peak expiratory flow rate (PEFR) percentage for a healthy individual based on predicted values?
What is the normal peak expiratory flow rate (PEFR) percentage for a healthy individual based on predicted values?
greater than 70%
For a patient experiencing severe asthma, a peak expiratory flow below ___ indicates a severe exacerbation.
For a patient experiencing severe asthma, a peak expiratory flow below ___ indicates a severe exacerbation.
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Match the following asthma medications to their intended use:
Match the following asthma medications to their intended use:
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What action should be taken if a patient does not improve after SABA and has a peak flow between 50% to 70%?
What action should be taken if a patient does not improve after SABA and has a peak flow between 50% to 70%?
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In a situation of hyperventilation, the partial pressure of CO2 is expected to be high.
In a situation of hyperventilation, the partial pressure of CO2 is expected to be high.
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What is a key indicator of a life-threatening asthma exacerbation?
What is a key indicator of a life-threatening asthma exacerbation?
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While using asthma medications, it is contraindicated to use certain treatments without concurrent _____.
While using asthma medications, it is contraindicated to use certain treatments without concurrent _____.
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Which is an associated risk of using certain asthma medications?
Which is an associated risk of using certain asthma medications?
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What defines Severe Persistent Asthma?
What defines Severe Persistent Asthma?
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Mild Persistent Asthma is classified by having more than two daytime symptoms per week but less than daily.
Mild Persistent Asthma is classified by having more than two daytime symptoms per week but less than daily.
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What medication is typically used for treatment of Intermittent Asthma?
What medication is typically used for treatment of Intermittent Asthma?
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Inhaled corticosteroids help to reduce inflammation by inhibiting ______ release.
Inhaled corticosteroids help to reduce inflammation by inhibiting ______ release.
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Which of the following is a common adverse effect associated with SABA?
Which of the following is a common adverse effect associated with SABA?
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Match the type of asthma with its characteristic:
Match the type of asthma with its characteristic:
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What is the FEV1 measurement range for Moderate Persistent Asthma?
What is the FEV1 measurement range for Moderate Persistent Asthma?
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LABA can be used alone for acute episodes in asthma treatment.
LABA can be used alone for acute episodes in asthma treatment.
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Adverse effects of inhaled corticosteroids may lead to the development of ______.
Adverse effects of inhaled corticosteroids may lead to the development of ______.
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Which medication is commonly used for nighttime symptoms in asthma treatment?
Which medication is commonly used for nighttime symptoms in asthma treatment?
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What is the primary treatment for Mild Persistent Asthma?
What is the primary treatment for Mild Persistent Asthma?
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Inhaled corticosteroids primarily provide bronchodilation.
Inhaled corticosteroids primarily provide bronchodilation.
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What FEV1 percentage indicates Severe Persistent Asthma?
What FEV1 percentage indicates Severe Persistent Asthma?
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The main adverse effect associated with SABA use is __________.
The main adverse effect associated with SABA use is __________.
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Match each type of asthma with its description:
Match each type of asthma with its description:
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What is an additional treatment option for Severe Persistent Asthma if the initial treatment is not responsive?
What is an additional treatment option for Severe Persistent Asthma if the initial treatment is not responsive?
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Long-acting beta-2 agonists (LABA) can be used alone for acute asthma episodes.
Long-acting beta-2 agonists (LABA) can be used alone for acute asthma episodes.
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List one common adverse effect of inhaled corticosteroids.
List one common adverse effect of inhaled corticosteroids.
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Mild Persistent Asthma is characterized by nighttime symptoms occurring __________ times per month.
Mild Persistent Asthma is characterized by nighttime symptoms occurring __________ times per month.
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Which medication is typically used as needed for intermittent asthma symptoms?
Which medication is typically used as needed for intermittent asthma symptoms?
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What is a potential side effect associated with leukotriene receptor antagonists?
What is a potential side effect associated with leukotriene receptor antagonists?
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Cromolyn sodium is useful for exercise-induced asthma.
Cromolyn sodium is useful for exercise-induced asthma.
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What is the expected peak flow percentage for a normal individual?
What is the expected peak flow percentage for a normal individual?
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In the case of hyperventilation, the pCO2 level is expected to be _____ due to excessive exhalation.
In the case of hyperventilation, the pCO2 level is expected to be _____ due to excessive exhalation.
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Match the following asthma medications with their characteristics:
Match the following asthma medications with their characteristics:
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Which of the following is a suitable treatment option during a life-threatening asthma exacerbation?
Which of the following is a suitable treatment option during a life-threatening asthma exacerbation?
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Continuous monitoring and supportive care are unnecessary for a patient with an acute asthma exacerbation.
Continuous monitoring and supportive care are unnecessary for a patient with an acute asthma exacerbation.
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What is one indicator of severe asthma exacerbation based on peak flow percentage?
What is one indicator of severe asthma exacerbation based on peak flow percentage?
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If the patient's peak flow is between 50% to 70% after SABA, further assessment including an _______ analysis should be considered.
If the patient's peak flow is between 50% to 70% after SABA, further assessment including an _______ analysis should be considered.
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What is the required frequency for administering Omalizumab?
What is the required frequency for administering Omalizumab?
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What FEV1 percentage indicates Intermittent Asthma?
What FEV1 percentage indicates Intermittent Asthma?
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Inhaled corticosteroids can lead to oral candidiasis if proper mouth rinsing is not performed.
Inhaled corticosteroids can lead to oral candidiasis if proper mouth rinsing is not performed.
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What is the primary treatment for Moderate Persistent Asthma?
What is the primary treatment for Moderate Persistent Asthma?
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For Mild Persistent Asthma, nighttime symptoms occur __________ times per month.
For Mild Persistent Asthma, nighttime symptoms occur __________ times per month.
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Match the asthma types with their FEV1 measurements:
Match the asthma types with their FEV1 measurements:
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What adverse effect is commonly associated with the use of SABA medications?
What adverse effect is commonly associated with the use of SABA medications?
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LABA should be used alone for acute asthma episodes.
LABA should be used alone for acute asthma episodes.
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List one common medication used as a short-acting beta-2 agonist (SABA).
List one common medication used as a short-acting beta-2 agonist (SABA).
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For Severe Persistent Asthma, symptoms occur __________ throughout the day.
For Severe Persistent Asthma, symptoms occur __________ throughout the day.
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Which medication is primarily used to manage inflammation in asthma?
Which medication is primarily used to manage inflammation in asthma?
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Which medication is known to inhibit bronchoconstriction and mucus production?
Which medication is known to inhibit bronchoconstriction and mucus production?
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Cromolyn sodium is primarily used to treat exercise-induced asthma.
Cromolyn sodium is primarily used to treat exercise-induced asthma.
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What is the role of SABA in asthma management?
What is the role of SABA in asthma management?
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In cases of severe asthma exacerbations, patients may require ______ medications for management.
In cases of severe asthma exacerbations, patients may require ______ medications for management.
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Match the following asthma medications with their corresponding characteristics:
Match the following asthma medications with their corresponding characteristics:
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What is a potential adverse effect related to leukotriene receptor antagonists?
What is a potential adverse effect related to leukotriene receptor antagonists?
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Continuous monitoring is necessary for stabilizing a patient during an acute asthma exacerbation.
Continuous monitoring is necessary for stabilizing a patient during an acute asthma exacerbation.
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What percentage of predicted peak flow indicates a severe asthma exacerbation?
What percentage of predicted peak flow indicates a severe asthma exacerbation?
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In hyperventilation, the partial pressure of CO2 (pCO2) is expected to be _____ due to excessive exhalation.
In hyperventilation, the partial pressure of CO2 (pCO2) is expected to be _____ due to excessive exhalation.
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When should high-dose corticosteroids or intravenous medications be considered?
When should high-dose corticosteroids or intravenous medications be considered?
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What is the primary treatment for Moderate Persistent Asthma?
What is the primary treatment for Moderate Persistent Asthma?
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Severe Persistent Asthma is characterized by FEV1 measurements less than 60%.
Severe Persistent Asthma is characterized by FEV1 measurements less than 60%.
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How often do nighttime symptoms occur for Mild Persistent Asthma?
How often do nighttime symptoms occur for Mild Persistent Asthma?
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SABA medications primarily provide __________ by activating beta-2 adrenergic receptors.
SABA medications primarily provide __________ by activating beta-2 adrenergic receptors.
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Match the type of asthma with its FEV1 measurement range:
Match the type of asthma with its FEV1 measurement range:
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Which medication is commonly used for treating nighttime symptoms in asthma?
Which medication is commonly used for treating nighttime symptoms in asthma?
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Inhaled corticosteroids help to reduce inflammation primarily by activating cytokine release.
Inhaled corticosteroids help to reduce inflammation primarily by activating cytokine release.
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What adverse effect is commonly associated with inhaled corticosteroids?
What adverse effect is commonly associated with inhaled corticosteroids?
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For individuals with Asthma, a peak expiratory flow below __% indicates a severe exacerbation.
For individuals with Asthma, a peak expiratory flow below __% indicates a severe exacerbation.
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What treatment is typically added for Severe Persistent Asthma if the initial treatments are not responsive?
What treatment is typically added for Severe Persistent Asthma if the initial treatments are not responsive?
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Which medication is indicated for exercise or cold-induced asthma?
Which medication is indicated for exercise or cold-induced asthma?
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Leukotriene receptor antagonists are primarily used to increase bronchoconstriction.
Leukotriene receptor antagonists are primarily used to increase bronchoconstriction.
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What is a significant associated risk of using certain asthma medications?
What is a significant associated risk of using certain asthma medications?
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For a life-threatening asthma exacerbation, the rapid assessment of response to __________ is crucial.
For a life-threatening asthma exacerbation, the rapid assessment of response to __________ is crucial.
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Match the following asthma treatments to their characteristics:
Match the following asthma treatments to their characteristics:
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What percentage of predicted peak flow indicates severe asthma if it is below this value?
What percentage of predicted peak flow indicates severe asthma if it is below this value?
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Continuous monitoring and supportive care are necessary for stabilization in acute asthma exacerbations.
Continuous monitoring and supportive care are necessary for stabilization in acute asthma exacerbations.
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What should be done if a patient with a peak flow between 50% to 70% does not improve after SABA?
What should be done if a patient with a peak flow between 50% to 70% does not improve after SABA?
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For a peak expiratory flow rate (PEFR), normal peak flow should be greater than _________ of the predicted value.
For a peak expiratory flow rate (PEFR), normal peak flow should be greater than _________ of the predicted value.
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Which adverse effect is associated with leukotriene receptor antagonists?
Which adverse effect is associated with leukotriene receptor antagonists?
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What characterizes a severe asthma exacerbation based on peak flow measurement?
What characterizes a severe asthma exacerbation based on peak flow measurement?
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Leukotriene receptor antagonists have no association with mood changes.
Leukotriene receptor antagonists have no association with mood changes.
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Which medication is used for exercise-induced asthma management?
Which medication is used for exercise-induced asthma management?
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A normal peak expiratory flow rate (PEFR) should be greater than ______ of the predicted value.
A normal peak expiratory flow rate (PEFR) should be greater than ______ of the predicted value.
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Match the following medications with their associated risks:
Match the following medications with their associated risks:
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When should high-dose oral corticosteroids be considered in asthma exacerbation management?
When should high-dose oral corticosteroids be considered in asthma exacerbation management?
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Continuous monitoring and supportive care are optional for a patient with an acute asthma exacerbation.
Continuous monitoring and supportive care are optional for a patient with an acute asthma exacerbation.
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What is a potential side effect of using SABA medications?
What is a potential side effect of using SABA medications?
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In hyperventilation, low pCO2 is expected due to excessive ______ exhalation.
In hyperventilation, low pCO2 is expected due to excessive ______ exhalation.
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What is the required administration frequency for Omalizumab?
What is the required administration frequency for Omalizumab?
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What is the treatment for Mild Persistent Asthma?
What is the treatment for Mild Persistent Asthma?
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Severe Persistent Asthma is characterized by symptoms that occur only once a week.
Severe Persistent Asthma is characterized by symptoms that occur only once a week.
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What does FEV1 stand for?
What does FEV1 stand for?
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The primary bronchodilator used as needed for asthma symptoms is known as a __________.
The primary bronchodilator used as needed for asthma symptoms is known as a __________.
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Match each type of asthma with its corresponding FEV1 measurement:
Match each type of asthma with its corresponding FEV1 measurement:
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Which of the following is a common adverse effect of inhaled corticosteroids?
Which of the following is a common adverse effect of inhaled corticosteroids?
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LABA should be used alone for managing acute asthma episodes.
LABA should be used alone for managing acute asthma episodes.
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What is the expected FEV1 percentage for Intermittent Asthma?
What is the expected FEV1 percentage for Intermittent Asthma?
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In Moderate Persistent Asthma, nighttime symptoms occur at least __________ per week.
In Moderate Persistent Asthma, nighttime symptoms occur at least __________ per week.
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Which medication is typically used for long-term control in combination with ICS?
Which medication is typically used for long-term control in combination with ICS?
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Study Notes
Asthma Classification and Treatment
-
Asthma is classified according to the frequency of daytime and nighttime symptoms, and FEV1 measurement.
-
Intermittent Asthma:
- Less than two daytime symptoms per week.
- Less than three nighttime symptoms per month.
- FEV1 greater than 80%.
- Treatment: Short-acting beta-2 agonist (SABA), typically used as needed (PRN).
-
Mild Persistent Asthma:
- More than two daytime symptoms per week but less than daily.
- Nighttime symptoms occur three to four times per month.
- FEV1 ≥ 80%.
- Treatment: SABA PRN plus low-dose inhaled corticosteroids (ICS), such as fluticasone or budesonide.
-
Moderate Persistent Asthma:
- Daily daytime symptoms.
- Nighttime symptoms occurring at least once per week.
- FEV1 between 60-80%.
- Treatment: SABA PRN plus medium-dose ICS, or low-dose ICS with long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Symptoms occur daily throughout the day.
- Nighttime symptoms occur nightly.
- FEV1 < 60%.
- Treatment options:
- SABA PRN, medium-dose ICS, and LABA.
- If not responsive, increase to high-dose ICS + LABA.
- Oral corticosteroids may be added for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Provides bronchodilation by activating beta-2 adrenergic receptors in bronchial smooth muscles.
- Common administration forms: metered-dose inhaler (MDI), dry powder inhaler (DPI), nebulizer.
- Adverse effects: tachyarrhythmias, tremors, dizziness, contraindicated in patients with heart issues or narrow-angle glaucoma.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokine release and the chemotaxis of white blood cells.
- Common drugs: fluticasone, budesonide, mometasone.
- Adverse effects: possibility of oral candidiasis (thrush), hence mouth rinsing is advised.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting agents used in combination with ICS.
- Should never be used alone for acute episodes due to risk of worsening symptoms.
- Associated risks: tachyarrhythmias, trembling, contraindicated without concurrent ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium, useful for exercise or cold-induced asthma, inhibits histamine release.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair), inhibits bronchoconstriction and mucus production.
- Associated with potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE antibody treatment, useful in severe allergic asthma; very costly and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- For life-threatening or near-fatal exacerbations, immediate intervention is crucial:
- Administer SABA and ensure rapid assessment of response.
- Consider high-dose oral corticosteroids or intravenous medications if no improvement.
- Continuous monitoring and supportive care are necessary to stabilize the patient.### Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is utilized in acute asthma management when Pulmonary Function Tests (PFTs) are impractical.
- Normal peak flow should be greater than 70% of the predicted value based on age, gender, and height.
Patient Assessment
-
Situation 1: Patient improves after taking a Short-Acting Beta Agonist (SABA); peak flow is likely above 70%. Discharge may be appropriate.
-
Situation 2: If the patient has a peak flow between 50% to 70% and has not improved after SABA, consider further assessment, including an Arterial Blood Gas (ABG) analysis.
-
ABG Results:
- pH, partial pressure of CO2 (pCO2), partial pressure of O2 (pO2), and bicarbonate levels are measured.
- In hyperventilation, expect low pCO2 due to excessive CO2 exhalation.
Severe Exacerbation Indicators
-
Situation 3: Elevated respiratory and heart rate (20-25 breaths/min and >100 bpm); peak flow between 25% to 50% indicates severe asthma. Abnormal ABG expected, usually showing low pCO2.
-
Situation 4: Peak expiratory flow below 25% and O2 saturation (<92%) signals potential respiratory failure. Lack of wheezing indicates severe obstruction; normal pCO2 suggests respiratory fatigue.
-
Situation 5: Elevated pCO2 in conjunction with peak flow <25% indicates severe obstruction and impending respiratory acidosis. Immediate intervention required.
Treatment Protocol
- Administer non-rebreather mask with supplemental oxygen targeting O2 saturation >92%.
- Provide Short-Acting Beta Agonist (e.g., albuterol) combined with Ipratropium Bromide, which prevents bronchoconstriction by blocking acetylcholine.
- If ineffective, initiate corticosteroids (IV or oral) for inflammation.
- Explore IV Magnesium Sulfate for severe cases; it enhances smooth muscle dilation by blocking calcium channels.
- If other measures fail, consider positive pressure ventilation or intubation for airway protection.
Discharge Protocol
- Upon stabilization, discharge typically includes an oral corticosteroid taper using a Medrol Dose Pack for ongoing symptom management.
Asthma Classification and Treatment
-
Asthma is categorized based on the frequency of symptoms and FEV1 levels.
-
Intermittent Asthma:
- Daytime symptoms <2 times/week; nocturnal symptoms <3 times/month.
- FEV1 ≥ 80%.
- Treatment: Short-acting beta-2 agonist (SABA) as needed.
-
Mild Persistent Asthma:
- Daytime symptoms >2 times/week but <1 time/day; nighttime symptoms 3-4 times/month.
- FEV1 ≥ 80%.
- Treatment: SABA as needed + low-dose inhaled corticosteroids (ICS).
-
Moderate Persistent Asthma:
- Daily daytime symptoms; nighttime symptoms at least once/week.
- FEV1 between 60-80%.
- Treatment: SABA as needed + medium-dose ICS, or low-dose ICS + long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Daily symptoms; nighttime symptoms nightly.
- FEV1 < 60%.
- Treatment: SABA as needed + medium-dose ICS + LABA, or escalate to high-dose ICS + LABA. Oral corticosteroids may be necessary for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Bronchodilation via beta-2 adrenergic receptor activation.
- Available as metered-dose inhaler, dry powder inhaler, or nebulizer.
- Side effects include tachyarrhythmias and tremors; contraindicated in patients with heart issues.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokines and chemotaxis of white blood cells.
- Examples include fluticasone and budesonide.
- Risks include oral thrush; mouth rinsing is recommended after use.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting; used with ICS, not alone for acute episodes.
- Associated with risks like tachyarrhythmias; use must be combined with ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium; prevents histamine release, effective for exercise or cold-induced asthma.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair); reduces bronchoconstriction and mucus production.
- Risks include potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE treatment for severe allergic asthma; expensive and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- Immediate intervention is crucial for life-threatening asthma exacerbations.
- Administer SABA and monitor response rapidly.
- High-dose oral corticosteroids or intravenous medications may be necessary if no improvement.
- Continuous monitoring and supportive care are essential for stabilization.
Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is used for acute management when Pulmonary Function Tests are impractical.
- Normal PEFR should exceed 70% of the predicted value based on age, gender, and height.
Patient Assessment
- Situation 1: If the patient improves post-SABA with peak flow likely >70%, discharge is appropriate.
- Situation 2: If peak flow is 50%-70% with no SABA improvement, further assessment and ABG analysis are warranted.
- ABG Analysis: Measures pH, pCO2, pO2, and bicarbonate levels; low pCO2 in hyperventilation indicates excessive CO2 exhalation.
Severe Exacerbation Indicators
- Situation 3: Elevated respiratory rate (20-25 breaths/min) and heart rate (>100 bpm); peak flow 25%-50% suggests severe asthma with expected abnormal ABG showing low pCO2.
- Situation 4: Peak expiratory flow <25% indicates critical condition; O2 saturation is likely low.
Asthma Classification and Treatment
-
Asthma is categorized based on the frequency of symptoms and FEV1 levels.
-
Intermittent Asthma:
- Daytime symptoms <2 times/week; nocturnal symptoms <3 times/month.
- FEV1 ≥ 80%.
- Treatment: Short-acting beta-2 agonist (SABA) as needed.
-
Mild Persistent Asthma:
- Daytime symptoms >2 times/week but <1 time/day; nighttime symptoms 3-4 times/month.
- FEV1 ≥ 80%.
- Treatment: SABA as needed + low-dose inhaled corticosteroids (ICS).
-
Moderate Persistent Asthma:
- Daily daytime symptoms; nighttime symptoms at least once/week.
- FEV1 between 60-80%.
- Treatment: SABA as needed + medium-dose ICS, or low-dose ICS + long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Daily symptoms; nighttime symptoms nightly.
- FEV1 < 60%.
- Treatment: SABA as needed + medium-dose ICS + LABA, or escalate to high-dose ICS + LABA. Oral corticosteroids may be necessary for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Bronchodilation via beta-2 adrenergic receptor activation.
- Available as metered-dose inhaler, dry powder inhaler, or nebulizer.
- Side effects include tachyarrhythmias and tremors; contraindicated in patients with heart issues.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokines and chemotaxis of white blood cells.
- Examples include fluticasone and budesonide.
- Risks include oral thrush; mouth rinsing is recommended after use.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting; used with ICS, not alone for acute episodes.
- Associated with risks like tachyarrhythmias; use must be combined with ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium; prevents histamine release, effective for exercise or cold-induced asthma.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair); reduces bronchoconstriction and mucus production.
- Risks include potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE treatment for severe allergic asthma; expensive and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- Immediate intervention is crucial for life-threatening asthma exacerbations.
- Administer SABA and monitor response rapidly.
- High-dose oral corticosteroids or intravenous medications may be necessary if no improvement.
- Continuous monitoring and supportive care are essential for stabilization.
Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is used for acute management when Pulmonary Function Tests are impractical.
- Normal PEFR should exceed 70% of the predicted value based on age, gender, and height.
Patient Assessment
- Situation 1: If the patient improves post-SABA with peak flow likely >70%, discharge is appropriate.
- Situation 2: If peak flow is 50%-70% with no SABA improvement, further assessment and ABG analysis are warranted.
- ABG Analysis: Measures pH, pCO2, pO2, and bicarbonate levels; low pCO2 in hyperventilation indicates excessive CO2 exhalation.
Severe Exacerbation Indicators
- Situation 3: Elevated respiratory rate (20-25 breaths/min) and heart rate (>100 bpm); peak flow 25%-50% suggests severe asthma with expected abnormal ABG showing low pCO2.
- Situation 4: Peak expiratory flow <25% indicates critical condition; O2 saturation is likely low.
Asthma Classification and Treatment
-
Asthma is categorized based on the frequency of symptoms and FEV1 levels.
-
Intermittent Asthma:
- Daytime symptoms <2 times/week; nocturnal symptoms <3 times/month.
- FEV1 ≥ 80%.
- Treatment: Short-acting beta-2 agonist (SABA) as needed.
-
Mild Persistent Asthma:
- Daytime symptoms >2 times/week but <1 time/day; nighttime symptoms 3-4 times/month.
- FEV1 ≥ 80%.
- Treatment: SABA as needed + low-dose inhaled corticosteroids (ICS).
-
Moderate Persistent Asthma:
- Daily daytime symptoms; nighttime symptoms at least once/week.
- FEV1 between 60-80%.
- Treatment: SABA as needed + medium-dose ICS, or low-dose ICS + long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Daily symptoms; nighttime symptoms nightly.
- FEV1 < 60%.
- Treatment: SABA as needed + medium-dose ICS + LABA, or escalate to high-dose ICS + LABA. Oral corticosteroids may be necessary for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Bronchodilation via beta-2 adrenergic receptor activation.
- Available as metered-dose inhaler, dry powder inhaler, or nebulizer.
- Side effects include tachyarrhythmias and tremors; contraindicated in patients with heart issues.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokines and chemotaxis of white blood cells.
- Examples include fluticasone and budesonide.
- Risks include oral thrush; mouth rinsing is recommended after use.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting; used with ICS, not alone for acute episodes.
- Associated with risks like tachyarrhythmias; use must be combined with ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium; prevents histamine release, effective for exercise or cold-induced asthma.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair); reduces bronchoconstriction and mucus production.
- Risks include potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE treatment for severe allergic asthma; expensive and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- Immediate intervention is crucial for life-threatening asthma exacerbations.
- Administer SABA and monitor response rapidly.
- High-dose oral corticosteroids or intravenous medications may be necessary if no improvement.
- Continuous monitoring and supportive care are essential for stabilization.
Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is used for acute management when Pulmonary Function Tests are impractical.
- Normal PEFR should exceed 70% of the predicted value based on age, gender, and height.
Patient Assessment
- Situation 1: If the patient improves post-SABA with peak flow likely >70%, discharge is appropriate.
- Situation 2: If peak flow is 50%-70% with no SABA improvement, further assessment and ABG analysis are warranted.
- ABG Analysis: Measures pH, pCO2, pO2, and bicarbonate levels; low pCO2 in hyperventilation indicates excessive CO2 exhalation.
Severe Exacerbation Indicators
- Situation 3: Elevated respiratory rate (20-25 breaths/min) and heart rate (>100 bpm); peak flow 25%-50% suggests severe asthma with expected abnormal ABG showing low pCO2.
- Situation 4: Peak expiratory flow <25% indicates critical condition; O2 saturation is likely low.
Asthma Classification and Treatment
-
Asthma is categorized based on the frequency of symptoms and FEV1 levels.
-
Intermittent Asthma:
- Daytime symptoms <2 times/week; nocturnal symptoms <3 times/month.
- FEV1 ≥ 80%.
- Treatment: Short-acting beta-2 agonist (SABA) as needed.
-
Mild Persistent Asthma:
- Daytime symptoms >2 times/week but <1 time/day; nighttime symptoms 3-4 times/month.
- FEV1 ≥ 80%.
- Treatment: SABA as needed + low-dose inhaled corticosteroids (ICS).
-
Moderate Persistent Asthma:
- Daily daytime symptoms; nighttime symptoms at least once/week.
- FEV1 between 60-80%.
- Treatment: SABA as needed + medium-dose ICS, or low-dose ICS + long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Daily symptoms; nighttime symptoms nightly.
- FEV1 < 60%.
- Treatment: SABA as needed + medium-dose ICS + LABA, or escalate to high-dose ICS + LABA. Oral corticosteroids may be necessary for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Bronchodilation via beta-2 adrenergic receptor activation.
- Available as metered-dose inhaler, dry powder inhaler, or nebulizer.
- Side effects include tachyarrhythmias and tremors; contraindicated in patients with heart issues.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokines and chemotaxis of white blood cells.
- Examples include fluticasone and budesonide.
- Risks include oral thrush; mouth rinsing is recommended after use.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting; used with ICS, not alone for acute episodes.
- Associated with risks like tachyarrhythmias; use must be combined with ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium; prevents histamine release, effective for exercise or cold-induced asthma.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair); reduces bronchoconstriction and mucus production.
- Risks include potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE treatment for severe allergic asthma; expensive and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- Immediate intervention is crucial for life-threatening asthma exacerbations.
- Administer SABA and monitor response rapidly.
- High-dose oral corticosteroids or intravenous medications may be necessary if no improvement.
- Continuous monitoring and supportive care are essential for stabilization.
Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is used for acute management when Pulmonary Function Tests are impractical.
- Normal PEFR should exceed 70% of the predicted value based on age, gender, and height.
Patient Assessment
- Situation 1: If the patient improves post-SABA with peak flow likely >70%, discharge is appropriate.
- Situation 2: If peak flow is 50%-70% with no SABA improvement, further assessment and ABG analysis are warranted.
- ABG Analysis: Measures pH, pCO2, pO2, and bicarbonate levels; low pCO2 in hyperventilation indicates excessive CO2 exhalation.
Severe Exacerbation Indicators
- Situation 3: Elevated respiratory rate (20-25 breaths/min) and heart rate (>100 bpm); peak flow 25%-50% suggests severe asthma with expected abnormal ABG showing low pCO2.
- Situation 4: Peak expiratory flow <25% indicates critical condition; O2 saturation is likely low.
Asthma Classification and Treatment
-
Asthma is categorized based on the frequency of symptoms and FEV1 levels.
-
Intermittent Asthma:
- Daytime symptoms <2 times/week; nocturnal symptoms <3 times/month.
- FEV1 ≥ 80%.
- Treatment: Short-acting beta-2 agonist (SABA) as needed.
-
Mild Persistent Asthma:
- Daytime symptoms >2 times/week but <1 time/day; nighttime symptoms 3-4 times/month.
- FEV1 ≥ 80%.
- Treatment: SABA as needed + low-dose inhaled corticosteroids (ICS).
-
Moderate Persistent Asthma:
- Daily daytime symptoms; nighttime symptoms at least once/week.
- FEV1 between 60-80%.
- Treatment: SABA as needed + medium-dose ICS, or low-dose ICS + long-acting beta-2 agonists (LABA).
-
Severe Persistent Asthma:
- Daily symptoms; nighttime symptoms nightly.
- FEV1 < 60%.
- Treatment: SABA as needed + medium-dose ICS + LABA, or escalate to high-dose ICS + LABA. Oral corticosteroids may be necessary for severe cases.
Medication Mechanism of Action
-
SABA (e.g., Albuterol):
- Bronchodilation via beta-2 adrenergic receptor activation.
- Available as metered-dose inhaler, dry powder inhaler, or nebulizer.
- Side effects include tachyarrhythmias and tremors; contraindicated in patients with heart issues.
-
Inhaled Corticosteroids:
- Reduce inflammation by inhibiting cytokines and chemotaxis of white blood cells.
- Examples include fluticasone and budesonide.
- Risks include oral thrush; mouth rinsing is recommended after use.
-
LABA (e.g., Salmeterol, Formoterol):
- Long-acting; used with ICS, not alone for acute episodes.
- Associated with risks like tachyarrhythmias; use must be combined with ICS.
Alternative Treatment Options
-
Mast Cell Stabilizers:
- Example: Cromolyn sodium; prevents histamine release, effective for exercise or cold-induced asthma.
-
Leukotriene Receptor Antagonists:
- Example: Montelukast (Singulair); reduces bronchoconstriction and mucus production.
- Risks include potential mood changes and suicidal ideation.
-
Omalizumab:
- Anti-IgE treatment for severe allergic asthma; expensive and requires administration every 2-4 weeks.
Management of Acute Exacerbation
- Immediate intervention is crucial for life-threatening asthma exacerbations.
- Administer SABA and monitor response rapidly.
- High-dose oral corticosteroids or intravenous medications may be necessary if no improvement.
- Continuous monitoring and supportive care are essential for stabilization.
Asthma Exacerbation Management
- Peak Expiratory Flow Rate (PEFR) is used for acute management when Pulmonary Function Tests are impractical.
- Normal PEFR should exceed 70% of the predicted value based on age, gender, and height.
Patient Assessment
- Situation 1: If the patient improves post-SABA with peak flow likely >70%, discharge is appropriate.
- Situation 2: If peak flow is 50%-70% with no SABA improvement, further assessment and ABG analysis are warranted.
- ABG Analysis: Measures pH, pCO2, pO2, and bicarbonate levels; low pCO2 in hyperventilation indicates excessive CO2 exhalation.
Severe Exacerbation Indicators
- Situation 3: Elevated respiratory rate (20-25 breaths/min) and heart rate (>100 bpm); peak flow 25%-50% suggests severe asthma with expected abnormal ABG showing low pCO2.
- Situation 4: Peak expiratory flow <25% indicates critical condition; O2 saturation is likely low.
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Description
Explore the different classifications of asthma based on symptom frequency and FEV1 measurements. This quiz covers intermittent, mild persistent, moderate persistent, and severe persistent asthma, along with their respective treatments. Test your knowledge on how to identify and manage asthma effectively.