Diagnostic testing -- Blood studies : hematology and coagulation -- Urine studies -- Stool studies -- Cerebrospinal fluid studies -- Chemistry studies -- Microbiologic studies -- Immunodiagnostic studies -- Nuclear medicine studies -- X-ray studies -- Cytologic, histologic, and genetic studies -- Endoscopic studies -- Ultrasound studies -- Pulmonary function, arterial blood gases (abgs), and electrolyte studies -- Prenatal diagnosis and tests of fetal well-being -- Special diagnostic, special specimen collection, and postmortem studies. -- App. A. Standard precautions for prevention and control of infection -- App. B. Guidelines for specimen transport and storage -- App. C. Vitamins in human nutrition -- App. D. Minerals in human nutrition -- App. E. Effects of drugs on laboratory tests (blood, "whole" plasma, serum, stool, and urine)