Medical Assistants work in hospitals, clinics, nursing homes, medical supply businesses, home health agencies, insurance companies, and pharmaceutical companies. Regardless of the nature of the work environment, Medical Assistants work directly with patients. Duties can include measuring and recording vital signs, recording medical histories, preparing patients for examinations, explaining treatment procedures, and assisting during examinations. They often collect and prepare laboratory specimens, perform basic laboratory procedures, administer EKGs, authorize prescription refills as directed, remove sutures, and change dressings. The Medical Assistant has become an indispensable part of any healthcare team.