They use automated equipment and instruments that perform a number of tests simultaneously, as well as microscopes, cell counters, and other kinds of sophisticated laboratory equipment to perform tests. Then they analyze the results and relay them to physicians. The complexity of tests performed, the level of judgment needed, and the amount of responsibility workers assume depend largely on the amount of education and experience they have. Medical and clinical laboratory technologists generally have a bachelor's degree in medical technology or in one of the life sciences, or have a combination of formal training and work experience. They perform complex chemical, biological, hematological, immunologic, microscopic, and bacteriological tests.
Technologists microscopically examine blood, tissue, and other body substances.
They analyze samples for chemical content or reaction and determine blood glucose or cholesterol levels. They also type and cross-match blood samples for transfusions. Medical and clinical laboratory technologists may evaluate test results, develop and modify procedures, and establish and monitor programs to insure the accuracy of tests. Some medical and clinical laboratory technologists supervise medical and clinical laboratory technicians. Technologists in small laboratories perform many types of tests, while those in large laboratories generally specialize.