A professional who performs medical laboratory tests, procedures, experiments, and analyses to provide data for diagnosis, treatment, and prevention of disease. Responsibilities include:

• Conducts chemical analyses of body fluids, such as blood, urine, and spinal fluid, to determine presence of normal and abnormal components.
• Studies blood cells, their numbers, and morphology, using microscopic technique.
• Performs blood group, type, and compatibility tests for transfusion purposes.
• Analyzes test results and enters findings in computer.
• Engages in medical research under direction of medical technologist, chief .
• May train and supervise students.
• May specialize in area such as hematology, blood-bank, serology, immunohematology, bacteriology, histology, or chemistry.