John Naheedy - USMLE Step 1

DEJA REVIEW
USMLE Step 1NOTICE

---

Medicine is an ever-changing science. As new research and clinical experience broaden our knowledge, changes in treatment and drug therapy are required. The authors and the publisher of this work have checked with sources believed to be reliable in their efforts to provide information that is complete and generally in accord with the standards accepted at the time of publication. However, in view of the possibility of human error or changes in medical sciences, neither the authors nor the publisher nor any other party who has been involved in the preparation or publication of this work warrants that the information contained herein is in every respect accurate or complete, and they disclaim all responsibility for any errors or omissions or for the results obtained from use of the information contained in this work. Readers are encouraged to confirm the information contained herein with other sources. For example and in particular, readers are advised to check the product information sheet included in the package of each drug they plan to administer to be certain that the information contained in this work is accurate and that changes have not been made in the recommended dose or in the contraindications for administration.

This recommendation is of particular importance in connection with new or infrequently used drugs.

---

USMLE Step 1Second EditionJohn H. Naheedy, MD
Fellow, Pediatric Radiology
Department of Radiology
Childrens Hospital Boston
Harvard Medical School
Boston, Massachusetts Daniel A. Orringer, MD
Chief Resident
Department of Neurosurgery
University of Michigan Medical School
Ann Arbor, Michigan Copyright 2010, 2006 by John H. Naheedy and Daniel A. Orringer.

All rights reserved. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. ISBN: 978-0-07-163786-2 MHID: 0-07-163786-9 The material in this eBook also appears in the print version of this title: ISBN: 978-0-07-162718-4, MHID: 0-07-162718-9. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps.

McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. To contact a representative please e-mail us at bulksales@mcgraw-hill.com. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. (McGraw-Hill) and its licensors reserve all rights in and to the work. Use of this work is subject to these terms. Except as permitted under the Copyright Act of 1976 and the right to store and retrieve one copy of the work, you may not decompile, disassemble, reverse engineer, reproduce, modify, create derivative works based upon, transmit, distribute, disseminate, sell, publish or sublicense the work or any part of it without McGraw-Hills prior consent.

You may use the work for your own noncommercial and personal use; any other use of the work is strictly prohibited. Your right to use the work may be terminated if you fail to comply with these terms. THE WORK IS PROVIDED AS IS. McGRAW-HILL AND ITS LICENSORS MAKE NO GUARANTEES OR WARRANTIES AS TO THE ACCURACY, ADEQUACY OR COMPLETENESS OF OR RESULTS TO BE OBTAINED FROM USING THE WORK, INCLUDING ANY INFORMATION THAT CAN BE ACCESSED THROUGH THE WORK VIA HYPERLINK OR OTHERWISE, AND EXPRESSLY DISCLAIM ANY WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. McGraw-Hill and its licensors do not warrant or guarantee that the functions contained in the work will meet your requirements or that its operation will be uninterrupted or error free. Neither McGraw-Hill nor its licensors shall be liable to you or anyone else for any inaccuracy, error or omission, regardless of cause, in the work or for any damages resulting there from.

McGraw-Hill has no responsibility for the content of any information accessed through the work. Under no circumstances shall McGraw-Hill and/or its licensors be liable for any indirect, incidental, special, punitive, consequential or similar damages that result from the use of or inability to use the work, even if any of them has been advised of the possibility of such damages. This limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in contract, tort or otherwise. To my family and friends, for their love and encouragement; and to my parents, for being an example of everything I want to be.
JohnTo my mother and my family.
Dan

Alexander Choo
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapters: Pulmonary, Skin and Connective Tissues, MusculoskeletalCharlotte Gore
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapters: Basic Principles, Neuroscience, Gastroenterology, Hematology and Oncology, Behavioral Science, Make the DiagnosisKristen A. Kipps
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapters: Immunology, Microbiology and Infectious DiseasesBrian S. Pugmire
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapter: Renal and GenitourinaryKrishna C.

Ravi
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapter: CardiovascularOmeed Saghafi
Medical Student
Class of 2010
University of California, San Diego
La Jolla, California
Chapter: Reproduction and Endocrinology

Betty Chung
MD/PhD Candidate
University of Medicine and Dentistry of New Jersey
School of Osteopathic Medicine
Class of 2012 Sarah Fabiano
SUNY Upstate Medical University
Class of 2010 Ali Rizvi, MPH
Lake Erie College of Osteopathic Medicine
Class of 2010 Dj Review USMLE Step 1 has been scrutinized and edited to produce a second edition that is even higher yield and easier to use than the first. Outstanding medical students who have recently taken Step 1 have revised the original text to ensure the material covered herein is complete and current. The authors, now with a combined 30 years of experience in the medical field, have also edited the manuscript to emphasize the relevant core concepts covered in the USMLE Step 1 examination. We are confident that our efforts have produced one of the most useful guides for Step 1 review available today. The main objective of a medical student preparing for Step 1 of the United States Medical Licensing Examination (USMLE) is to commit a vast body of knowledge to memory. Having recently prepared for Step 1, we realize how daunting this task can be.Next page