Back office medical assistants conduct basic clinical duties for doctors and nurses in a physician’s office, hospital, or other medical facility. In this role, you bring patients back to the exam rooms, take and record vital signs, and ask patients questions about their symptoms, concerns, and medical history. When necessary, you also conduct hearing and vision exams, prepare patients for in-office medical procedures such as EKGs, and draw blood and collect urine specimens for laboratory work. You carry out most of your responsibilities in the back office of a medical facility, but most medical assistants are also responsible for some front office duties, such as filing and organizing patient records, answering phone calls, and scheduling patients.