What medication should be administered first to a patient with a systemic allergic reaction presenting with facial edema and severe airway symptoms, given the options below?

• A. Benadryl
• B. Solu-Medrol
• C. Albuterol
• D. Epinephrine

Answer: (D)

When a systemic allergic reaction presents with facial edema and severe airway symptoms, the priority is to reverse anaphylaxis quickly. Epinephrine is the first choice because it hits multiple parts of the reaction at once: alpha-1 effects reduce mucosal and facial swelling and help raise blood pressure, while beta-2 effects relax bronchial smooth muscle to relieve bronchospasm. It also stabilizes mast cells to limit further mediator release. Other meds may help later, but they don’t address the life-threatening airway swelling and potential shock as rapidly. Benadryl mainly provides antihistamine effects with slower, limited impact on airway edema. Solu-Medrol can help with ongoing inflammation but has a delayed onset and won’t rapidly reverse airway obstruction. Albuterol helps bronchodilate but doesn’t reduce swelling or prevent hemodynamic collapse. So, epinephrine should be given immediately.