Respiratory Drugs and Their Effects

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Questions and Answers

Which instruction is correct for a patient taking an antihistamine?

  • Antihistamines are generally safe to take with over-the-counter (OTC) medications.
  • Take the medication on an empty stomach to maximize absorption of the drug.
  • Take the medication with food, even though doing so may slightly reduce the absorption of the drug. (correct)
  • Eat chocolate bars to ease the discomfort of dry mouth.

How does the antitussive dextromethorphan (Benylin DM-E®) work to suppress the cough reflex?

  • By anaesthetizing the stretch receptors
  • Through a direct action on the cough centre (correct)
  • By causing central nervous system (CNS) depression
  • By decreasing the viscosity of the bronchial secretions

Which antihistamine is commonly used in the treatment of motion sickness?

  • cyproheptadine hydrochloride (correct)
  • Codeine phosphate
  • Reactine®
  • Loratadine (Claritin)

During a routine checkup, the patient reports an inability to take the prescribed antihistamine because of one of its most common adverse effects. The physician prescribes another antihistamine, loratadine (Claritin®). What adverse effect has probably been bothering this patient?

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

A gardener needs a decongestant because of seasonal allergy problems. Which is a benefit of orally administered decongestants?

<p>Rebound congestion is almost nonexistent. (C)</p> Signup and view all the answers

A patient is taking guaifenesin (Balminil®) as part of treatment of influenza. What should the nurse also instruct the patient to do?

<p>Increase fluids to help loosen and liquefy secretions. (B)</p> Signup and view all the answers

What systemic effect may occur with the administration of a topically applied adrenergic nasal decongestant?

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

Which drug is most likely to be chosen to aid in the removal of excessive mucus in the respiratory tract?

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

The nurse knows that an antitussive drug is most appropriate for which patient?

<p>A patient who has developed bronchitis 2 days after hernia repair surgery (A)</p> Signup and view all the answers

A patient has been advised to add a nasal spray (an adrenergic decongestant) to treat a cold. What should the nurse tell the patient in regard to the nasal spray?

<p>Administer as ordered with no increase in frequency. (B)</p> Signup and view all the answers

Because of many reported adverse events, which groups of children should not be given cough and cold medications?

<p>Children younger than 6 years of age (A)</p> Signup and view all the answers

A patient is taking aminophylline intravenously for a severe exacerbation of chronic obstructive pulmonary disease. Which effect does the nurse expect to note when evaluating for a therapeutic response to the medication?

<p>Increased ease of breathing (A)</p> Signup and view all the answers

Which is an adverse effect associated with the use of xanthine derivatives?

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

What is the rationale for using inhaled budesonide (Pulmicort®)?

<p>It provides an anti-inflammatory response. (B)</p> Signup and view all the answers

A patient has been prescribed a respiratory corticosteriod medication. What should the nurse tell this patient about the proper method for taking this medication?

<p>Rinsing of the mouth after using the inhaler is recommended. (C)</p> Signup and view all the answers

The physician has prescribed fluticasone (Flovent®) to treat a patient's asthma. What important information should the nurse emphasize when teaching the patient about this medication?

<p>The medication is to be taken every day on a continuous schedule, even if symptoms improve. (A)</p> Signup and view all the answers

Which drug is used in the treatment of acute attacks of bronchial asthma?

<p>salbutamol (Ventolin®) (D)</p> Signup and view all the answers

A patient has prescriptions for two inhalers. One inhaler is a bronchodilator; the other is a corticosteroid. Which instruction should the nurse give the patient regarding these inhalers?

<p>The bronchodilator should be taken first. (C)</p> Signup and view all the answers

A patient has recently been placed on inhaled corticosteroids. Which common adverse effects should the nurse discuss with the patient?

<p>Oral candidiasis and dry mouth (C)</p> Signup and view all the answers

After receiving a nebulizer treatment with a ẞ-agonist, the patient reports feeling slightly nervous and wonders whether the asthma is getting worse. What is the nurse's best answer to the patient's concern?

<p>Feeling a little nervous is an expected adverse effect. Let me take your pulse to check it. (D)</p> Signup and view all the answers

For which condition would the nurse anticipate treatment with montelukast (Singulair®)?

<p>Prophylaxis of asthma in children (A)</p> Signup and view all the answers

Flashcards

Antihistamine use with food

Taking antihistamines with food minimizes gastrointestinal upset, even if absorption slightly decreases.

Dextromethorphan mechanism

Dextromethorphan (Benylin DM-E®) suppresses coughing by directly acting on the cough center in the brain.

Motion sickness antihistamine

Cyproheptadine hydrochloride is a common antihistamine used to treat motion sickness.

Antihistamine drowsiness

Drowsiness is a common side effect of older antihistamines, but loratadine (Claritin®) is a non-drowsy option.

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Oral decongestant benefit

Oral decongestants have a reduced risk of rebound congestion compared to topical nasal sprays.

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Guaifenesin use

Guaifenesin (Balminil®) is an expectorant that helps loosen and thin respiratory secretions.

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Topical decongestant systemic effect

Topical nasal sprays can cause nervousness, high blood pressure, and rapid heartbeat if absorbed into the bloodstream.

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Guaifenesin function

Guaifenesin helps remove excess mucus in the respiratory tract by loosening and thinning it, thus reducing coughing.

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Antitussive use case

Antitussives (cough suppressants) are useful when coughing is harmful, like after surgery, not helpful, or even undesirable.

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Nasal spray frequency

Nasal sprays should be used as prescribed without increasing the frequency, to prevent rebound congestion.

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Cough and cold meds for children

Cough and cold medications are generally not recommended for children under 6 years old due to potential adverse effects.

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Aminophylline respiratory effect

Aminophylline, a bronchodilator, improves breathing by relaxing respiratory muscles.

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Xanthine derivative side effect

Palpitations and heart rate changes are common side effects of xanthine derivatives like aminophylline.

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Inhaled budesonide purpose

Inhaled budesonide (Pulmicort®) reduces inflammation in the airways.

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Inhaled corticosteroid mouth rinsing

Rinsing the mouth after using an inhaler or nebulizer prevents fungal infections.

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Fluticasone use

Fluticasone is used routinely to prevent asthma attacks.

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Acute asthma treatment

Salbutamol (Ventolin®) is a common treatment for sudden asthma attacks.

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Inhaler order

Bronchodilators should be used before corticosteroids for better airway opening before corticosteroid administration.

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Inhaled corticosteroid side effects

Common side effects of inhaled corticosteroids include oral thrush and dry mouth.

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Beta-agonist use nervousness

Feeling nervous is a possible side effect of inhaled beta-agonists, as they stimulate the nervous system.

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Montelukast use

Montelukast (Singulair®) is used to prevent future asthma attacks, not to treat acute attacks.

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Acute asthma drugs

Salbutamol nebulizers, intravenous epinephrine, and aminophylline are used for immediate treatment of asthma attacks.

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Study Notes

Antihistamines, Decongestants, Antitussives, and Expectorants

  • Antihistamines should be taken with food to minimize gastrointestinal upset, though this slightly reduces absorption.
  • Dextromethorphan (Benylin DM-E®) suppresses coughing through direct action on the cough center.
  • Cyproheptadine hydrochloride is a common treatment for motion sickness.
  • Common adverse effect of many antihistamines is drowsiness. Loratadine (Claritin®) is a non-sedating alternative.
  • Oral decongestants have a delayed onset but less rebound congestion compared to topical ones.
  • Guaifenesin (Balminil®) is an expectorant; it helps loosen and liquefy secretions by increasing fluids.
  • Topical nasal decongestants can cause nervousness if absorbed into the bloodstream, along with hypertension or palpitations.

Respiratory Drugs

  • Bronchodilating drugs such as xanthine derivatives cause increased ease of breathing as a therapeutic response.
  • Palpitations are a common adverse effect of xanthine derivatives.
  • Inhaled budesonide (Pulmicort®) is an anti-inflammatory that stabilizes membranes to prevent bronchoconstricting substances release.
  • Rinsing the mouth after using inhalers or nebulizers prevents fungal infections.
  • Fluticasone (Flovent®) is for asthma prophylaxis and maintenance; it should be taken regularly, even when symptoms are improving.
  • Salbutamol (Ventolin®) is a beta2-agonist used for acute asthma attacks.
  • Montelukast (Singulair®) is an antileukotriene used for long-term treatment of asthma in adults and children.
  • Corticosteroids should be taken after a bronchodilator to increase airway openness.
  • Oral candidiasis and dry mouth are possible adverse effects of inhaled corticosteroids.
  • Beta2-agonists can cause nervousness, tremors, and cardiac stimulation.
  • Inhaled corticosteroids are for asthma prophylaxis, not acute attacks.

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