Pharmacology Proctored ATI Practice Exam 2026 – Comprehensive Test Prep

The primary treatment for anaphylaxis is the epinephrine injection. Anaphylaxis is a severe, life-threatening allergic reaction that can occur rapidly. In this critical situation, epinephrine acts as a potent vasoconstrictor and bronchodilator, effectively reversing the symptoms of anaphylaxis.

When injected, epinephrine works quickly to increase blood pressure by constricting blood vessels, helps to relax the muscles around the airways to improve breathing, and reduces swelling and hives. This rapid intervention is crucial because anaphylaxis can progress very quickly, and timely administration of epinephrine can save a patient's life.

While antihistamines and corticosteroids play a role in managing allergic reactions, they are not effective for the immediate treatment of anaphylaxis. Antihistamines primarily relieve mild allergy symptoms and do not address the serious cardiovascular and respiratory effects of anaphylaxis. Corticosteroids, on the other hand, may be used to reduce inflammation and prevent a delayed response following an anaphylactic reaction, but they do not provide the rapid relief necessary for acute cases.

IV fluids may be necessary in specific circumstances to manage hypotension after an epinephrine injection; however, they are not the primary treatment for the acute