Book excerpt: This popular resource allows the reader to appropriately select and accurately interpret laboratory tests in a practical and efficient manner. It presents an organized method of answering common questions that reflect the most frequently encountered problems in laboratory tests. A new chapter on Point-of-Care Methodology has been added, and the section on electrolyte/acid-base now includes strong ion differences. Two additional color plates feature 12 new figures. Each chapter contains several tables for easy access to data. Listing of Referral Laboratories provides a list of labs that can be contacted for certain diseases. Reference Values provide an instant source to identify coagulation, hematology , etc., reference values. Laboratory Findings of Selected Diseases give the reader a brief overview of diagnostic features. A full-color, 8-page insert of illustrations aids in morphologic diagnosis. Expert editors and contributors provide the most accurate, authoritative information. Chapter outlines provide the reader with an overview of each chapter. Limited chapter references make the book easier to use in the laboratory. A new chapter on Point-of Care Methodology is included. Strong ion differences have been added to the electrolyte/acid-base section. An additional 12 full-color illustrations are featured in two new color plates.