Endocrine Pharmacology USMLE Step 1 Practice Question
A 17-year-old boy with mild hemophilia A presents for dental extraction. Vital signs are stable: BP 120/78 mmHg, HR 82/min, RR 16/min, temp 37°C. Laboratory studies show factor VIII activity 35% (normal >50%). His hematologist administers a medication that increases release of von Willebrand factor and factor VIII from endothelial storage sites. The patient denies previous adverse reactions to hemostatic agents. Which drug was most likely administered?
Answer choices
- AHydrocortisone
- BTolvaptan
- COxytocin
- DOctreotide
- EDesmopressinCorrect answer
- FVasopressin
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