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NR293 RESPIRATORY DRUGS CHAPTER 37 | COMPREHENSIVE PHARMACOLOGY STUDY GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027

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NR293 RESPIRATORY DRUGS CHAPTER 37 | COMPREHENSIVE PHARMACOLOGY STUDY GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027

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NR293 RESPIRATORY DRUGS CHAPTER 37 | COMPREHENSIVE PHARMACOLOGY
STUDY GUIDE, PRACTICE QUESTIONS & ANSWERS 2026/2027


What are the treatments for diseases of the lower respiratory tract? - correct answer
✔✔*Bronchodilators: *
Beta-adrenergic agonists
Xanthine derivatives
Anticholinergics

*Non-Bronchodilators: *
Leukotriene receptor antagonists (LTRAs)
Corticosteroids

What is the function of beta-adrenergic agonists? - correct answer ✔✔Quickly reduce airway
constriction and restore airflow.

Sympathomimetic - Imitate the effects of norepinephrine on beta receptors.

Categorized by their onset of action:
Short-Acting (SABA) - Symptomatic treatment
Long-Acting (LABA) - Prophylactic treatment

What is the function of xanthine derivatives? - correct answer ✔✔Prevention of asthmatic symptoms
and COPD (not for relief of acute asthma attacks).

What are the contraindications of xanthine derivatives? - correct answer ✔✔Uncontrolled cardiac
dysrhythmias

Seizure disorders

Hyperthyroidism

Peptic ulcers

What are the adverse effects of xanthine derivatives? - correct answer ✔✔*Mild:* N/V, anorexia, GI
reflux

*Severe:* Tachycardia, extrasystole, palpitations, ventricular dysrhythmias

*Toxicity:* Requires laboratory monitoring of drug levels.

What is the function of leukotriene receptor antagonists (LTRA's)? - correct answer ✔✔Inflammation in
the lungs is blocked.

Prevent smooth muscle contraction of bronchioles.

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