CNS Pharmacology USMLE Step 1 Practice Question
A 17-year-old boy with known peanut allergy presents to the emergency department minutes after eating a cookie at school. He has diffuse urticaria, wheezing, and angioedema of the lips. Vital signs show BP 88/54 mmHg, HR 118/min, RR 22/min, and SpO2 92% on room air. Serum tryptase is elevated at 12 ng/mL. He denies prior anaphylaxis. An injection is administered to the lateral thigh. Which agent is most appropriate because it causes bronchodilation and increases peripheral vascular resistance?
Answer choices
- APrednisone
- BDiphenhydramine
- CMontelukast
- DAlbuterol
- EEpinephrineCorrect answer
- FMethylprednisolone
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