A clinical pathology or a medical laboratory is a place where specimens from human body are collected, processed, examined or analyzed. Clinical laboratory specimens include whole blood, plasma, serum, urine, cerebrospinal fluid, feces, body fluids, etc. Various clinical laboratory departments include hematology, clinical chemistry, immunohematology, urinalysis, microbiology, parasitology, coagulation, cytology and anatomic pathology. Laboratory testing plays a major role in the clinical decision-making by the physician and in the overall patient management.