A quick and easy way to minimise the problems in patient care associated with inappropriate use and interpretation of laboratory tests, this guide shouldl help clinicians cut costs and improve their service by eliminating unnecessary lab tests and using more specific diagnostic evaluations. Employing a problem-oriented approach, it includes approximately 100 algorithms for promoting the appropriate use and interpretation of laboratory tests by practicing clinicians. A summary of keypoints and caveats appears in legend form below each algorithm. The algorithms are easy to follow, concise, and specific. A handbook size item with a large textbook level of information, this book covers most areas of clinical laboratory testing, including clinical chemistry (routine, endocrine, and toxicology), haematology (routine specialized haematology and coagulation), microbiology, blood transfusion and immunology. It addresses more than 99% of diagnoses in the area of coagulation.