Test your readiness with this month ’s USMLE Step 1 stumper

The United States Medical Licensing Examination ® (USMLE®) Step 1 exam is often the first major test of a medical student’s knowledge, and some of its questions are missed by all but a select few highly prepared test takers. Check out this month’s question that Kaplan Medical says stumps most students, and view an expert video explanation o f 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,AMA Wire ®reveals questions many physicians-in-training miss on the USMLE and provides helpful analysis of correct answers, along with videos featuring tips on how to advance test-taking 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: Gastrin, acetylcholine and histamine all regulate gastric acid secretion from parietal cells under normal conditions. Administration of atropine will most likely cause which of the following changes in the ability of gastrin, acetylcholine and histamine to stimulate acid secretion?          The correct answer is C.Kaplan says, here ’s why: Parietal cells express at least five different receptors types that control acid secretion —three excitatory, two inhibitory. All five receptors signal their occupancy via G-proteins. The three exci...
Source: AMA Wire - Category: Journals (General) Authors: Source Type: news