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The Rational Clinical Examination NOTICE 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 reli- able 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 possi- bility 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 publica- tion 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. Read- ers 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. The Rational Clinical Examination Evidence-Based Clinical Diagnosis Editors David L. Simel, MD, MHS Chief, Medicine Service Durham Veterans Affairs Medical Center Professor of Medicine Duke University School of Medicine Durham, North Carolina Drummond Rennie, MD JAMA Chicago, Illinois Philip R. Lee Institute for Health Policy Studies University of California, San Francisco San Francisco, California Editor, Education Guides Sheri A. Keitz, MD, PhD Chief, Medicine Service Miami Veterans Affairs Medical Center Associate Dean for Faculty Diversity and Development University of Miami Miller School of Medicine Miami, Florida New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto Copyright © 2009 by the American Medical Association. All rights reserved. Manufactured in the United States of America. 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. 0-07-159031-5 The material in this eBook also appears in the print version of this title: 0-07-159030-7. All trademarks are trademarks of their respective owners. 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If you’d like more information about this book, its author, or related books and websites, please click here. For more information about this title, click here CONTENTS Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii Acknowledgments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix 1. A Primer on the Precision and Accuracy of the Clinical Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 UPDATE: Primer on Precision and Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 2. Does This Patient Have Abdominal Aortic Aneurysm?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 UPDATE: Abdominal Aortic Aneurysm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 3. Is Listening for Abdominal Bruits Useful in the Evaluation of Hypertension? . . . . . . . . . . . . . . . . . . . . . . . . . . .29 UPDATE: Abdominal Bruits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 4. Does This Patient Have an Alcohol Problem?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 UPDATE: Problem Alcohol Drinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 5. Does This Adult Patient Have Appendicitis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 UPDATE: Appendicitis, Adult . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 6. Does This Patient Have Ascites?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 UPDATE: Ascites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 7. What Can the Medical History and Physical Examination Tell Us About Low Back Pain? . . . . . . . . . . . . . . . . . .75 UPDATE: Low Back Pain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 8. Does This Patient Have Breast Cancer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 UPDATE: Breast Cancer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 9. Does This Patient Have a Clinically Important Carotid Bruit? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 UPDATE: Carotid Bruit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 10. Does This Patient Have Carpal Tunnel Syndrome? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111 UPDATE: Carpal Tunnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121 11. Does This Patient Have Abnormal Central Venous Pressure?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 UPDATE: Central Venous Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133 12. Does This Patient Have Acute Cholecystitis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 UPDATE: Cholecystitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145 13. Does the Clinical Examination Predict Airflow Limitation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149 UPDATE: Chronic Obstructive Airways Disease. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159 14. Does This Patient Have Clubbing?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163 UPDATE: Clubbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171 15. Is This Patient Taking the Treatment as Prescribed?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173 UPDATE: Compliance and Medication Adherence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179 16(A). Can the Clinical Examination Diagnose Left-Sided Heart Failure in Adults?. . . . . . . . . . . . . . . . . . . . . . . . . . .183 v Contents 16(B). Does This Dyspneic Patient in the Emergency Department Have Congestive Heart Failure? . . . . . . . . . . . . . . .195 UPDATE: Congestive Heart Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209 17. Is This Patient Dead, Vegetative, or Severely Neurologically Impaired? Assessing Outcome for Comatose Survivors of Cardiac Arrest. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215 UPDATE: Death. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225 18(A). Does This Patient Have Deep Vein Thrombosis? (1998). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227 18(B). Does This Patient Have Deep Vein Thrombosis? (2006). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235 UPDATE: Deep Vein Thrombosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245 19. Is This Patient Clinically Depressed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247 UPDATE: Depression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259 20. Does This Patient Have a Family History of Cancer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .265 UPDATE: Family History of Cancer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275 21. Does This Patient Have a Goiter?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .277 UPDATE: Goiter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .285 22. Does This Patient Have Hepatomegaly? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .289 UPDATE: Hepatomegaly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299 23. Does This Patient Have Hypertension? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301 UPDATE: Hypertension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .311 24. Is This Adult Patient Hypovolemic?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315 UPDATE: Hypovolemia, Adult . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325 25. Is This Child Dehydrated? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .329 UPDATE: Hypovolemia, Child . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339 26. Does This Patient Have Influenza?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343 UPDATE: Influenza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355 27. Does This Patient Have a Torn Meniscus or Ligament of the Knee? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357 UPDATE: Knee Ligaments and Menisci. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369 28. Is This Adult Patient Malnourished? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .371 UPDATE: Malnourishment, Adult . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .379 29. Does This Patient Have a Mole or a Melanoma? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .383 UPDATE: Melanoma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .391 30. Does This Adult Patient Have Acute Meningitis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395 UPDATE: Meningitis, Adult. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .403 31. Is This Woman Perimenopausal?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .407 UPDATE: Menopause . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415 32. Does This Patient Have Aortic Regurgitation? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419 UPDATE: Murmur, Diastolic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .429 33. Does This Patient Have an Abnormal Systolic Murmur?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .433 UPDATE: Murmur, Systolic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .443 34. Does This Patient Have Myasthenia Gravis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .449 UPDATE: Myasthenia Gravis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .459 vi Contents 35. Is This Patient Having a Myocardial Infarction?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .461 UPDATE: Myocardial Infarction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .471 36. Does This Woman Have Osteoporosis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .477 UPDATE: Osteoporosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .489 37. Does This Child Have Acute Otitis Media? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .493 UPDATE: Otitis Media, Child . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501 38. Does This Patient Have Parkinson Disease?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .505 UPDATE: Parkinsonism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .513 39. Is This Patient Allergic to Penicillin? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .515 UPDATE: Penicillin Allergy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .523 40. Does This Adult Patient Have Community-Acquired Pneumonia? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .527 UPDATE: Community-Acquired Pneumonia, Adult. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .535 41. Does This Infant Have Pneumonia?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .539 UPDATE: Pneumonia, Infant and Child. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .547 42. Is This Patient Pregnant? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .551 UPDATE: Early Pregnancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .559 43. Does This Patient Have Pulmonary Embolism?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .561 UPDATE: Pulmonary Embolus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .571 44. Does This Patient Have an Instability of the Shoulder or a Labrum Lesion? . . . . . . . . . . . . . . . . . . . . . . . . . .577 UPDATE: Shoulder Instability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .589 45. Does This Patient Have Sinusitis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593 UPDATE: Sinusitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601 46. Does This Patient Have Splenomegaly?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605 UPDATE: Splenomegaly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .611 47. Does This Patient Have Strep Throat? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .615 UPDATE: Streptococcal Pharyngitis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .623 48. Is This Patient Having a Stroke? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .627 UPDATE: Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .641 49. Does This Patient Have Temporal Arteritis? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .643 UPDATE: Temporal Arteritis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .653 50. Does This Patient Have an Acute Thoracic Aortic Dissection? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .659 UPDATE: Thoracic Aortic Dissection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .671 51. Does This Woman Have an Acute Uncomplicated Urinary Tract Infection? . . . . . . . . . . . . . . . . . . . . . . . . . . .675 UPDATE: Urinary Tract Infection, Women . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .687 52. What Is Causing This Patient’s Vaginal Symptoms? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .691 UPDATE: Vaginitis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705 53. Does This Dizzy Patient Have a Serious Form of Vertigo? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .709 UPDATE: Vertigo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .715 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719 vii JAMAevidence: Using Evidence to Improve Care Founded around the Users’ Guides to the Medical Literature and The Rational Clinical Examina- tion: Evidence-Based Clinical Diagnosis, JAMAevidence offers an invaluable online resource for learning, teaching, and practicing evidence-based medicine (EBM). Updated regularly, the site includes fully searchable content of the Users’ Guides to the Medical Literature and The Rational Clinical Examination and features podcasts from the leading minds in EBM, interactive work- sheets, question wizards, functional calculators, and a comprehensive collection of PowerPoint slides for educators and students. www.JAMAevidence.com Please visit www.JAMAevidence.com for subscription information. viii

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