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HESI LPN · HESI LPN Pharmacology · HESI Pharmacology respiratory drugs NCLEX Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Caffeine is more powerful than theophylline in exerting the following action

A. Bronchodilatation

B. Cardiac stimulation

C. Diuresis

D. Augmentation of skeletal muscle contractility

Correct Answer: Cardiac stimulation

Question 2 of 5

Which xanthine derivative has no function in asthma?

A. Theophylline

B. Pentoxifylline

C. Enprofylline

D. None of the above

Correct Answer: Pentoxifylline

Question 3 of 5

Ipratropium bromide:

A. Is administered intravenously

B. Causes bronchodilatation because of its antagonistic effects at the cholinergic MÃ¢â€šâ€š/MÃ¢â€šÆ’ receptors

C. Has a more rapid onset of bronchodilatation than beta agonists

D. Has a bitter taste

Correct Answer: Causes bronchodilatation because of its antagonistic effects at the cholinergic MÃ¢â€šâ€š/MÃ¢â€šÆ’ receptors

Question 4 of 5

Tachyphylaxis to many actions on repeated injection is a feature of the following autocoid

A. Histamine

B. 5-Hydroxytryptamine

C. Bradykinin

D. Angiotensin

Correct Answer: 5-Hydroxytryptamine

Question 5 of 5

Which of the following is a direct bronchodilator that is most often used in asthma by the oral route?

A. Aminophylline

B. Cromolyn

C. Epinephrine

D. Ipratropium

Correct Answer: Aminophylline

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