Answer to Question 1
ANS: A
Fexofenadine is one of the least sedating antihistamines. Occasionally, a tolerance to antihistaminic effects will develop. Antihistamines are more effective if taken before histamine is released. Histamine release is not prevented by this medication. Symptoms are reduced.
Answer to Question 2
ANS: C
Dyspnea (difficulty breathing) caused by constriction and spasm of the bronchial tubes is the priority. Hypotension (low blood pressure), urticaria (severe itching), and rhinorrhea (running nose) can occur during a severe allergic reaction but are not the priority.