NCLEX : Respiratory Pharmacology

Study concepts, example questions & explanations for NCLEX

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Example Questions

Example Question #1 : Respiratory Pharmacology

All of the following are examples of adrenergic agonists except __________.

Possible Answers:

tiotropium

albuterol

terbutaline

salmeterol 

Correct answer:

tiotropium

Explanation:

Albuterol, terbutaline, and salmeterol are all beta-2 adrenergic agonists. Beta-2 adrenergic agonists stimulate beta-2 adrenergic receptors, causing smooth muscle relaxation in the bronchial passages.

Tiotropium (trade name Spiriva) is an anticholinergic bronchodilators.

Example Question #2 : Respiratory Pharmacology

Which of the following is an example of an inhaled steroid used in the treatment of asthma?

Possible Answers:
Tiotropium

Salmeterol

Fluticasone

Ipratropium

Correct answer:

Fluticasone

Explanation:

Fluticasone (trade name Flovent) is a synthetic glucocorticoid used in the treatment of asthma and allergic rhinitis. 

Tiotropium (trade name Spiriva) and Ipratropium (trade name Atrovent) are both anticholinergics, and Salmeterol (trade name Serevent) is a beta-2 adrenergic receptor agonist.

Example Question #1 : Respiratory Pharmacology

What class of drug is montelukast?

Possible Answers:

Anticholinergic bronchodilator

Long acting beta-2 agonist (LABA)

Corticosteroid

Leukotriene inhibitor

Correct answer:

Leukotriene inhibitor

Explanation:

Montelukast is a leukotriene inhibitor. It acts by antagonism of the leukotriene receptor sites in bronchial wall smooth muscle to prevent wheezing, chest tightness, and coughing caused by asthma, and to treat other respiratory issues to promote proper ventilation.

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