not harmful. Human body manufactures a couple of milliliters of new blood every day. Blood studies may give information about the levels of

sodium, potassium, calcium and other chemicals. Presence of certain enzymes and information about the coagulation characteristics, levels of

sugar, urea, cholesterol, alcohol, protein, and other drugs of patients’ blood sample. Diagnosing diseases and disorders requires highly developed

skill on the part of the physician or other medical professional .Usually the diagnosis calls for systematic use of and diagnostic aids, various tests,

and instruments and machines. Quality systems are the mainstay of clinical laboratory management.