Performs procedures for testing or analysis on specimens submitted to the laboratory. Evaluates test results for accuracy and submits results for the purpose of aiding the physician in diagnostic and therapeutic treatment of patients. Performs analyses that may involve a complex network of steps, variable fine-line discriminations of several parameters, correction of a variety of errors, and the operation and maintenance of complicated instruments. Supervises and accounts for work of trainees and other supportive technical personnel employed by the laboratory. Performs assigned duties rapidly and accurately. Plans work activities and makes decisions connected with own work. Recognizes unusual results and/or abnormalities and takes prompt and appropriate action to assure the accuracy and validity of test result. Assumes accountability for the dissemination of patient information to ensure the confidentiality and privacy of patients. Duties may also include performance of procedures associated with procurement of specimens from patients.