Under the general supervision of a Supervisor, Manager, or Director, performs clinical laboratory testing using established and approved protocols, exercising independent judgment and responsibility. Maintains equipment and records, conducts quality assurance activities related to test performance, and may supervise and teach in the laboratory. The role requires accurate testing, critical analysis and interpretation of laboratory data, current knowledge of policies and procedures, efficient use of time and materials, and effective communication and handoffs to team members. Other duties may be assigned.