Tests organized alphabetically with A-to-Z thumb tabs for quick reference. Each test entry begins on a new page, making tests easy to find. Normal findings for adult, elderly, and pediatric patients are included where applicable to provide complete clinical data. Possible critical values are highlighted to alert the reader to situations requiring immediate intervention. Icon for drug-related interfering factors alerts the reader to the effects of pharmacologic agents on tests. Abnormal findings are highlighted with directional arrows. Icon for patient teaching-related care indicates information that should be shared with patients and their families. "User's Guide to Test Preparation and Performance" provides an overview and guidelines for each type of laboratory test and diagnostic procedure to ensure safety and accuracy. An appendix lists tests by body system and test type, allowing the reader to quickly locate related studies. Abbreviations for tests are provided on the end sheets, and symbols and units of measurement are listed in an appendix. Durable cover with rounded edges helps prevent the book from being damaged. Related tests are cross-referenced, making them easy to find.