A traveling certified medical assistant (CMA) offers clinical, administrative, and clerical support services at different health care facilities. An agency may give you temporary jobs in different locations, or you can seek jobs on your own. Your duties vary depending on the details of each assignment. Some traveling CMAs answer phones, schedule appointments, and direct patient calls at medical clinics. You can also collect information from patients and organize medical records. Depending on your level of certification, you may have responsibilities such as cleaning exam rooms, preparing patients for tests such as X-rays, and taking vital signs.