USMLE Step 1 stumper: Can you answer it correctly?

The United States Medical Licensing Examination ® (USMLE®) Step 1 exam is notorious for pushing the limits of medical students’ knowledge, so you might like to know which test prep questions are commonly missed. Check out this month’s question that Kaplan Medical says stumps most students, and view an expert video explanation of the answer. Welcome to this month ’s installment of the AMA Wire® series, Tutor talk: Tips from Kaplan Medical on the most missed USMLE test prep questions from Kaplan’s Qbank: Step 1. Each month, we’re revealing the top questions physicians in training miss on the USMLE, a helpful analysis of answers and videos featuring tips on how to advance your test-ta king strategies. See all posts in this series. Think you have what it takes to rise above your peers? Test your USMLE knowledge below. Ready. Set. Go.This month ’s question that stumped most students:   The diagram shows changes in blood pressure and heart rate in an animal with intact reflexes in response to drug X (agonist) and drug Y (antagonist). Assume that the antagonist ' s effects will last for the duration of the experiment and that the agonist ' s effects are transient. Drug X and drug Y are most likely to be which of the following? A.  X=Isoproterenol/Y=Atropine B.  X=Isoproterenol/Y=Phentolamine C.  X=Isoproterenol/Y=Propranolol D.  X=Norepinephrine/Y=Atropine E.  X=Norepinephrine/Y=Phentolamine F.  X=Norepinephrine/Y=Propranolol   The correct answe...
Source: AMA Wire - Category: Journals (General) Authors: Source Type: news