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An excellent resource for appropriate test ordering and interpretation, Wallach’s Interpretation of Diagnostic Tests, 11th Edition, helps you save time, avoid errors, and arrive at an accurate diagnosis. Organized into two easy-to-reference sections, this fully revised manual provides comprehensive, practical information on common and uncommon disease states and their diagnosis by laboratory test. The eleventh edition has been revised and reorganized based on reader feedback, helping primary care physicians, subspecialists, physician assistants, nurse practitioners, and medical and nursing students keep pace with a rapidly changing health care environment.

An easy-to-use organization presents routine and lesser known lab tests first (alphabetically, with detailed descriptions), with disease states following.
Newly concise and streamlined content is highlighted by abundant tables, algorithms, and bulleted lists and checklists.
A new pull-out card, “Ask Before You Test,” helps you remember to check key factors that affect lab tests.
Content updates include new information in the genetic, molecular diagnostics, and neurology testing chapters.
Frequently ordered tests are included in tabular form, as well as in a tear-out version for convenient clinical use.
An expanded index helps you efficiently locate needed information.

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Contents
Contributors v
Foreword vii
Tribute to Jacques Wallach ix
Preface xi
Preface to the First Edition xiii
Acknowledgments xv
CHAPTER 1 FALTs: Factors Affecting Laboratory Tests 1
L. V. Rao
CHAPTER 2 Laboratory Tests 16
L. V. Rao and Hongbo Yu
CHAPTER 3 Infectious Disease Assays 464
Michael J. Mitchell, Marzena M. Galdzicka, and L. V. Rao
CHAPTER 4 Autoimmune Diseases 594
M. Rabie Al-Turkmani
CHAPTER 5 Cardiovascular Disorders 613
Mohammed Waseem Akhter and Craig S. Smith
CHAPTER 6 Central Nervous System Disorders 669
Juliana G. Szakacs and Edward I. Ginns
CHAPTER 7 Digestive Diseases 728
L. Michael Snyder and Michael J. Mitchell
CHAPTER 8 Endocrine Diseases 814
Hongbo Yu
CHAPTER 9 Genitourinary System Disorders 877
Charles R. Kieferxviii Contents
CHAPTER 10 Gynecologic and Obstetric Disorders 906
Juliana G. Szakacs
CHAPTER 11 Hematologic Disorders 933
Hongbo Yu
CHAPTER 12 Hereditary and Genetic Diseases 1061
Marzena M. Galdzicka, Patricia Minehart Miron,
and Edward I. Ginns
CHAPTER 13 Infectious Diseases 1120
Michael J. Mitchell
CHAPTER 14 Renal Disorders 1210
M. Rabie Al-Turkmani
CHAPTER 15 Respiratory, Metabolic, and Acid–Base Disorders 1251
L. V. Rao and Michael J. Mitchell
CHAPTER 16 Toxicology and Therapeutic Drug Monitoring 1308
Amanda J. Jenkins
CHAPTER 17 Transfusion Medicine 1325
Vishesh Chhibber
APPENDIX Abbreviations and Acronyms 1343
Index 1359