A medical laboratory technologist (MT) performs diagnostic testing of blood and body fluids in clinical laboratories. The scope of a medical laboratory scientist's work begins with the receipt of patient or client specimens and terminates with the delivery of test results to physicians and other healthcare providers. The utility of clinical diagnostic testing relies squarely on the validity of test methodology. To this end, much of the work done by medical laboratory technician involves ensuring specimen quality, interpreting test results, data-logging, testing control products, performing calibration, maintenance, validation, and troubleshooting of instrumentation as well as performing statistical analyses to verify the accuracy and repeatability of testing.

Medical laboratory technician may also assist healthcare providers with test selection and specimen collection and are responsible for prompt verbal delivery of critical lab results. An estimated 70% of medical decisions are based on laboratory test results and MLT contributions affect 95% of a health system's costs.

The most common tests performed by medical laboratory scientists are complete blood count (CBC), comprehensive metabolic panel (CMP), electrolyte panel, liver function tests (LFT), renal function tests (RFT), thyroid function test (TFT), urinalysis, coagulation profile, lipid profile, blood type, semen analysis (for fertility and post-vasectomy studies), serological studies and routine cultures.

In some facilities that have few phlebotomist, or none at all, (such as in rural areas) medical laboratory scientists may perform phlebotomy. Because medical laboratory scientists have many transferable technical skills, employment outside of the medical laboratory is common. Many medical laboratory scientists are employed in government positions such as the FDA, non-medical industrial laboratories, and manufacturing.

Medical laboratory technicians are expected to provide expert scientific and clinical leadership alongside and, at the same level as, medical consultant colleagues. While specialists in healthcare science will follow protocols, procedures and clinical guidelines, Medical laboratory technicians will help shape future guidelines and the implementation of new and emerging technologies to help advance patient care.

Students have great many opportunities to work in Government Hospitals, Semi Government Hospitals, Private Hospitals, Diagnostic Center, Private Pathology Lab, Nursing Home, Forensic Lab, Public Health Lab, Epidemiological Lab, Fertility Lab, Genetic Lab & Research Lab In different capacity as Teacher, Senior Technician, section Manager, Lab in charge & Lab Director. They may also find job as clinical lab instructor, product specialist and Diagnostic specialist

A qualified Lab Technologist is absorbed in Health Care industry as junior technician. This post has ample opportunity to grow as senior Technician, Section Supervisor, and Lab Manager, Lab administrator, Lab In charge or senior most position as laboratory Director. During all these positions he works as a team member of health care provider which includes Physicians, Surgeons & other specialist in a modern hi tech Hospitals & Medical Centers. He gets excellent job satisfaction, social status, & magnificent monitory gains.