A unique resouce for physicians and students which promotes the delivery of safe, effective and informed care for patients who are undergoing different diagnostic tests and procedures, explore diagnostic and laboratory tests including the way to perform routine blood testing and urine testing. What makes this book unique are the explanation of various factors which falsely increase/decrease the value of specific tests(s). Readers can interpret the positive and negative values by their reference ranges - although reference ranges of every test vary due to different guidelines and usage of different reference values by each laboratory due to their methodologies.