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Chapter 35: Drugs Affecting the Respiratory System

Which of the following statements is untrue?

a. Expectorants thin and liquefy respiratory secretions.

b. Alpha-1 adrenoceptor antagonists act as decongestants.

c. Histamine-1 receptor antagonists decrease symptoms of allergic reactions.

d. Antitussives suppress coughing.

Which of the following drugs is an agonist at both α1 and β receptors?

a. Phenylephrine

b. Pseudoephedrine

c. Oxymetazoline

d. Diphenhydramine

Which of the following drugs may cause hypotension when taken in large doses due to an effect at α2 adrenoceptors?

a. Pseudoephedrine

b. Diphenhydramine

c. Oxymetazoline

d. Guaifenesin

Which of the following drugs is an opioid derivative?

a. Pseudoephedrine

b. Diphenhydramine

c. Oxymetazoline

d. Dextromethorphan

In asthma, what is the inflammatory phase?

a. Early phase

b. Delayed phase

c. Acute phase

d. Late phase

Which of the following is not a mechanism of bronchodilation?

a. Stimulation of β1-adrenergic receptors

b. Inhibition of phosphodiesterase

c. Inhibition of muscarinic receptors

d. Inhibition of adenosine receptors

Which of the following drugs is considered a methylxanthine?

a. Roflumolist

b. Aminophylline

c. Ipratropium

d. Salmeterol

Which of the following drug classes’ major mechanism of action is not anti-inflammatory?

a. Glucocorticoids

b. Leukotriene inhibitors

c. β2-Adrenergic agonists

d. Phosphodiesterase type-4 (PDE-4) inhibitors

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