Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

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What is the primary function of leukotriene receptor antagonists (LTRAs)?

  1. To induce bronchodilation

  2. To decrease blood pressure

  3. To reduce inflammation and prevent bronchoconstriction

  4. To increase heart rate

The correct answer is: To reduce inflammation and prevent bronchoconstriction

Leukotriene receptor antagonists (LTRAs) primary function is to reduce inflammation and prevent bronchoconstriction. They do this by blocking the activity of leukotrienes, which are chemicals involved in the inflammatory process and airway constriction. Option A is incorrect because LTRAs do not directly cause bronchodilation, although they may indirectly help with this by reducing inflammation and bronchoconstriction. Option B is incorrect because LTRAs do not have an effect on blood pressure. Option D is incorrect because LTRAs do not increase heart rate. It's important to remember that LTRAs are mainly used for the treatment of asthma and not other conditions that may involve bronchodilation or changes in blood pressure or heart rate.

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