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Access to the eBook is limited to the first individual who redeems the PIN, located on the inside cover of this book, at studentconsult.inkling.com and may not be transferred to another party by resale, lending, or other means. USMLE STEP 1 SECRETS IN COLOR This page intentionally left blank USMLE STEP 1 SECRETS IN COLOR FOURTH EDITION THOMAS A. BROWN, MD Medical Director/Owner Kathy’s Urgent Care of Wethersfield Wethersfield, Connecticut SONALI J. BRACKEN MD/PhD Candidate University of Connecticut School of Medicine Farmington, Connecticut 3251 Riverport Lane St. Louis, Missouri 63043 USMLE STEP 1 SECRETS IN COLOR, FOURTH EDITION ISBN: 978-0-323-39679-0 Copyright © 2017, Elsevier Inc. All rights reserved. Previous editions copyrighted 2013, 2008, and 2004. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or me- chanical, including photocopying, recording, or any information storage and retrieval system, without permis- sion in writing from the publisher. Details on how to seek permission, further information about the Publisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions. This book and the individual contributions contained in it are protected under copyright by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information, methods, compounds, or experiments described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a professional responsibility. With respect to any drug or pharmaceutical products identified, readers are advised to check the most current information provided (i) on procedures featured or (ii) by the manufacturer of each product to be administered, to verify the recommended dose or formula, the method and duration of administration, and contraindications. It is the responsibility of practitioners, relying on their own experience and knowledge of their patients, to make diagnoses, to determine dosages and the best treatment for each individual patient, and to take all appropriate safety precautions. To the fullest extent of the law, neither the Publisher nor the authors, contributors, or editors, assume any lia- bility for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions, or ideas contained in the material herein. Library of Congress Cataloging-in-Publication Data Names: Brown, Thomas A. (Thomas Andrew), 1972- editor. | Bracken, Sonali J., editor. Title: USMLE step 1 secrets in color / [edited by] Thomas A. Brown, MD, Medical Director/Owner, Kathy’s Urgent Care of Wethersfield, Wethersfield, Connecticut, Sonali J. Bracken, MD/PhD Candidate, University of Connecticut School of Medicine, Farmington, Connecticut. Other titles: USMLE step 1 secrets Description: Fourth edition. | St. Louis, Missouri : Elsevier, [2017] | Revison of: USMLE step 1 secrets / Thomas A. Brown, David D. Brown. c2013. 3rd ed. Identifiers: LCCN 2016037935 | ISBN 9780323396790 Subjects: LCSH: Medical sciences--Outlines, syllabi, etc. | Physicians--Licenses--United States--Examinations--Study guides. Classification: LCC R834.5 .B765 2017 | DDC 610.76--dc23 LC record available at https://lccn.loc.gov/2016037935 Content Strategist: James Merritt Content Development Specialist: Nicole Dicicco Publishing Services Manager: Hemamalini Rajendrababu Project Manager: Divya Krishna Kumar Design Direction: Ryan Cook Printed in the United States of America Last digit is the print number: 9 8 7 6 5 4 3 2 1 LIST OF CONTRIBUTORS Matthew N. Anderson, MD Joravar Dhaliwal Neurological Surgery Resident University of Connecticut School of Medicine Brown University Rhode Island Hospital Farmington, Connecticut Providence, Rhode Island Andrew J. Duarte Melissa Argraves, MD University of Connecticut School of Medicine Resident, Department of Pediatrics Farmington, Connecticut Children’s Hospital of Philadelphia Ryan P. Duggan Philadelphia, Pennsylvania University of Connecticut School of Medicine Yetunde Asiedu, MD Farmington, Connecticut University of Connecticut School of Medicine Thomas J.S. Durant, MPT, MD Farmington, Connecticut Yale School of Medicine Melina Benson Department of Laboratory Medicine University of Connecticut School of Medicine New Haven, Connecticut Farmington, Connecticut Cory Dwyer Giana C. Bistany, MD, MS University of Connecticut School of Medicine University of Connecticut School of Medicine Farmington, Connecticut Obstetrics and Gynecology Brian P. Epling Farmington, Connecticut University of Connecticut School of Medicine Martina S. Burn, MD Farmington, Connecticut Department of Obstetrics, Gynecology and Patrick A. Field, MD Reproductive Sciences University of Connecticut School of Medicine Yale School of Medicine Farmington, Connecticut New Haven, Connecticut Boston Medical Center Internal Medicine Samantha Chirunomula Boston, Massachusetts University of Connecticut School of Medicine Rebecca Flugrad Farmington, Connecticut University of Connecticut School of Medicine Sarah E. Conway Farmington, Connecticut NYU School of Medicine Eric Han, MD New York, New York Yale School of Medicine Sarah Cryer Resident, Department of Obstetrics, Gynecology and University of Connecticut School of Medicine Reproductive Sciences Farmington, Connecticut New Haven, Connecticut Robert D’Angelo, MD Alex M. Hennessey, MD Harvard Medical School University of Connecticut School of Medicine Beth Israel Deaconess Hospital Farmington, Connecticut Boston, Massachusetts Matthew Howe Apeksha Dave University of Texas Health Science Center at Houston University of Connecticut School of Medicine Houston, Texas Farmington, Connecticut Liza Karamessinis, MD Stephanie Davis The Children’s Hospital of Philadelphia University of Connecticut School of Medicine Philadelphia, Pennsylvania Farmington, Connecticut Christopher Del Prete, MD Dartmouth-Hitchcock Medical Center Lebanon, New Hampshire v vi LIST OF CONTRIBUTORS Shirin Karimi, MD Nicole J. Rubin, MD University of Connecticut School of Medicine Resident, Department of Obstetrics and Gynecology Farmington, Connecticut University of Connecticut School of Medicine Resident in Internal Medicine at Cambridge Health Farmington, Connecticut Alliance Joseph M. Ryan Clinical Fellow in Medicine at Harvard Medical University of Connecticut School of Medicine School Farmington, Connecticut Boston, Massachusetts Neda Shahriari Adam J.S. Kaye, MD University of Connecticut School of Medicine University of Connecticut School of Medicine Farmington, Connecticut Farmington, Connecticut Kelsey Sokol, MD Andrew Kelsey, MD University of Connecticut School of Medicine University of Connecticut School of Medicine Farmington, Connecticut John Dempsey Hospital Farmington, Connecticut Eunice Song, MD University of Connecticut School of Medicine Kaitlyn Ryan LaMarche, MD Farmington, Connecticut University of Connecticut School of Medicine Farmington, Connecticut Bryan Stenson University of Connecticut School of Medicine Hien Le, MD Farmington, Connecticut University of Connecticut School of Medicine Farmington, Connecticut Margaret Stevenson University of Connecticut School of Medicine Aaron Lee, MD Farmington, Connecticut University of Connecticut School of Medicine Farmington, Connecticut Long Tu, MD University of Connecticut School of Medicine Deirdre Lewis, MD Farmington, Connecticut University of Massachusetts Medical School-Baystate Springfield, Massachusetts Hollis A. Viray, MD University of Connecticut School of Medicine Maritza Montanez, MD Farmington, Connecticut University of Connecticut School of Medicine Farmington, Connecticut Gillian Weston, MD University of Connecticut Henry L. Nguyen, MD Farmington, Connecticut University of California, San Diego La Jolla, California David S. Wong University of Connecticut School of Medicine Lena M. O’Keefe, MS Farmington, Connecticut University of Connecticut School of Medicine Farmington, Connecticut Kyle T. Wright, MD, PhD Harvard Medical School Meaghen Roy-O’Reilly Brigham and Women’s Hospital University of Texas Health Science Center at Houston Boston, Massachusetts Houston, Texas PREFACE Preparing for the United States Medical Licensing Examination (USMLE) Step 1 can be an intimidating and nerve-wracking experience. For one thing, this score actually counts! Although for many of you the most important goal in taking Step 1 is passing this exam, we know that is not enough. Earning a spot in a competitive field or residency program requires you to do more than just pass in order to compete with other high-caliber students. Let us pause right here and take a moment to introduce ourselves. We are the authors of USMLE Step 1 Secrets, 4th edition, and we have one aim in writing this book: We are here to help you earn the highest score you possibly can on this exam. HOW EARLY SHOULD YOU BEGIN STUDYING FOR THE USMLE? Students frequently ask this question, but unfortunately there is no simple way to answer it. Students commonly allocate anywhere from 2 to 6 months to study for boards, but some take more time and a rare few may need less. The point is that each student should begin his or her preparations at a time that makes sense for that particular individual. When planning your own study schedule, consider how busy you estimate you will be in the months leading up to your exam (do not neglect your coursework!), how many hours per day you are willing to dedicate to productive study time, and how well you think you retain information in the short term versus the long term. Most medical students will have figured out which study styles work best for them long before they even begin to think about boards. Do not change your study habits dramatically for the USMLE if you have found methods that work well for you. HOW WILL THIS BOOK HELP YOU PREPARE FOR STEP 1? As you may have already figured out, there are hundreds of review books available to help you prepare for this exam. While the content in these books may overlap quite a bit, the way that material is presented can vary dramatically from resource to resource. The trick to selecting good review books is to purchase a few that mesh well with your learning style and the actual format of the USMLE. The more books you have in front of you, the greater the potential for confusion and the less produc- tive you will feel. In other words, an overabundance of resources eventually will become an impediment to your studying. The most efficient test takers are the students who consolidate their study materials as time goes by. Start with a fresh copy of the newest edition of First Aid for the USMLE Step 1. This will be your primary resource for the USMLE Step 1. Our book is designed to supplement the information that you learn in First Aid and help you place it into clinical context through a mix of basic-concept and case-based questions. The detailed explanations we provide to our questions will offer you insight into the way that the USMLE will expect you to think through questions on test day. In addition, our book will provide you with dozens of valuable study tips (including tips from third- and fourth-year medical students who have earned competitive scores on the USMLE Step 1) to facilitate your studying. We begin each chapter with an insider’s guide that will provide you with our best study strategies for that particular subject. In addition, each chapter includes a number of “Step 1 Secrets” that will point out the highest yield topics to focus on for boards. It is our mission to offer you the type of valuable information that you can really use to boost your score on test day, and you will find it exclusively in the fourth edition of USMLE Step 1 Secrets. NOW THAT YOU HAVE SELECTED YOUR RESOURCES, HOW SHOULD YOU GO ABOUT STUDYING FOR THE EXAM? • Set up a study schedule as early as possible. Determine when you will begin studying, how much time you will dedicate to the exam each week or month, and when you would like to cover specific subject areas in your review process. Keep in mind that you will need the last few weeks before boards to review all of the content that you have studied. • Make a flexible study schedule, especially early in your preparations. Give yourself some free time every day to enjoy other activities and relax your mind. This will increase the productivity of your study time. • Purchase a copy of First Aid for the USMLE Step 1 as soon as possible, and casually review it when studying for your medical school exams, especially during your second year. There is no need to place your emphasis on studying for your board exam before you are ready, but at least familiarizing yourself with First Aid in advance will make you feel much more comfortable when beginning your USMLE studying. • Annotate your copy of First Aid with notes from USMLE Step 1 Secrets and other high-yield resources. All of your notes will therefore be in one place in the weeks leading up to your exam date, and you will have a much easier time getting through all of the material during your final review phase. vii viii PREFACE • Begin using question bank software months before your exam date. Most students use Kaplan Qbank, USMLE World, USMLE Consult, or USMLERx. If you have the time and budget to do so, we recommend purchasing more than one product from the aforementioned list. You can use one program casually (tutor mode) and the other program more intensely (random questions, timed mode) to simulate actual exam conditions. No matter which mode you use, you will benefit from reading all of the answer explanations at the end. Consider marking questions with great learning points or excellent diagrams so that you can easily find them again. Keep in mind that you can download question bank applications for your smartphone. • The night before your exam, try to put your books away and get a good night’s rest. Half of the battle will be keeping your focus through an intense, 8-hour exam day. If you feel the need to study the day before or morning of your exam as a “warm up” or to relieve some anxiety, we recommend going through the high-yield review sections at the end of First Aid or a few of your own notes. You may also consider answering a couple of practice questions, but be wary of looking at the answers at this time in case you get them wrong. Avoid cramming any information (new or old) right before your exam to prevent an anxiety attack. • Most important, try not to worry too much about your score on Step 1. While your board score will be an important factor in your residency application, it is not the only factor. (On the other hand, keep in mind that a good Step 1 score will not make up for poor grades in school.) You would not have gotten into medical school if you were not competent enough to pass this exam. All you need to do is put in the time and effort. WHEN WILL I GET MY SCORE? Naturally, this is one of the most frequently asked questions among eager examinees who have completed the USMLE Step 1. Scores are typically made available on the NBME website 3 to 5 weeks after your exam date (lag time is determined by the number of students who have taken the exam during your window). On the morning that your score will be released, you will receive an email from NBME alerting you that your score will be made available that afternoon. Your score report will contain your numerical score and a brief outline of your performance in a broad array of areas. The information provided will be quite similar to the score report you receive if you elect to take a practice NBME exam through the NBME website. TEN THINGS STUDENTS WISH THEY HAD KNOWN BEFORE TAKING THE USMLE STEP 1 1. Questions on the USMLE Step 1 are often slightly longer than those found in most question bank programs. Most students finish in time, but keeping on pace will be very important to your success on this exam. 2. Before the start of your exam, you will be given a small whiteboard on which to scribble formulas and perform calcu- lations during your exam. You may take a few minutes before you actually begin your exam to jot down some notes. Determine what you will write on your whiteboard during the final week of your review so as not to waste time during your exam. 3. Anatomy throws many students for a loop on Step 1 because they are often unsure how to prepare for this subject. Be sure to read our “Insider’s Guide to Clinical Anatomy for the USMLE Step 1” in Chapter 26 of this book. 4. You should expect to have a small percentage of questions on topics that you have never before seen or studied. You may also get four to five questions on the same topic. If you do not know the answer, take your best guess and move on. Do not let yourself become flustered or frustrated because you may otherwise miss some easy questions. 5. You are allowed 45 minutes of break time during your exam, but you can gain extra break time by skipping the tuto- rial (15 minutes; you can watch a similar tutorial on the NBME website before your exam date) or finishing a block before the allotted time expires. Most students find an hour of break time to be adequate, but you should spend some time before your exam planning out how you will allot your time. Do not forget that you are expected to include lunch in your break time. 6. Bring snacks. You will be facing a long day. We suggest that you eat a small lunch and a few snacks in between blocks rather than one big lunch (some students will otherwise become lethargic during the afternoon). Be wary of selecting high-sugar snacks (the last thing you need while taking the USMLE is a sugar crash!). 7. While it is no secret that you should dress in comfortable clothing while sitting for your exam, students often do not know that they should wear as little jewelry and clothing with as few pockets as possible. To prevent the use of prohibited items, most testing centers will scan you with a metal wand and ask you to turn out your pockets each time you re-enter the examination room following a break. Not only is this a frustrating process, but also it is a waste of your break time. You will get through this inspection much more quickly with less jewelry and fewer pockets. Also remember to bring your ID and locker key with you every time you leave the test center. 8. All NBME forms are different! Do not be fooled by students who tell you that their questions were identical to those in the USMLE World, Kaplan Qbank, USMLE Consult, or USMLERx. There is no guarantee that your experience will be the same as theirs. The more questions you do, the better prepared you will be. We recommend that you reserve at least 1000 practice questions to answer in conditions that closely simulate the exam (full blocks, random assortment, and timed mode). 9. When scheduling your exam date, keep in mind that having more time to study will not necessarily improve your performance. Every individual has a peak performance window, and trying to study past this window may hurt your