A nurse is reviewing the medication history of a client who reports urinary retention.
The nurse should recognize that which of the following medications can cause this adverse reaction?

Choice A rationale:

Montelukast does not improve peripheral vasodilation. It is a leukotriene receptor antagonist used to reduce inflammation in the airways.

Choice B rationale:

Montelukast does not increase the WBC count. It works by reducing inflammation in the airways, not by affecting the immune system.

Choice C rationale:

Montelukast does not neutralize gastric acid. It is not an antacid or proton pump inhibitor, it is used to reduce inflammation in the airways.

Choice D rationale:

Montelukast reduces bronchial inflammation. It helps to prevent asthma attacks and exercise-induced bronchoconstriction by reducing inflammation in the airways.

Choice A rationale:

Hoarseness of voice can be a symptom of an allergic reaction, indicating swelling and inflammation in the throat. If the client’s voice is no longer hoarse after taking diphenhydramine, it suggests that the medication has been effective in reducing this symptom.

Choice B rationale:

Diphenhydramine is an antihistamine and can often cause drowsiness as a side effect. Therefore, feeling more alert would not typically indicate that the medication has been effective.

Choice C rationale:

While headaches can sometimes be associated with allergic reactions, they are not a primary symptom that diphenhydramine targets. Therefore, absence of a headache does not necessarily indicate effectiveness of the medication.

Choice D rationale:

Increased appetite is not typically associated with the effectiveness of diphenhydramine in treating allergic reactions.