Clinical Medical Assistants complete clinical tasks in the offices of physicians, podiatrists, chiropractors, and other health practitioners. Their duties vary with the location, specialty, and size of the practice. Clinical Medical Assistants typically do the following: take patient history and measure vital signs, help the physician with patient examinations, give patient injections as directed by the physician, and prepare blood for laboratory tests. Additional duties include but are not limited to; disposing of contaminated supplies, sterilizing medical instruments, instructing patients about medication or special diets, preparing patients for diagnostic procedures, removing stitches, drawing blood, performing EKG’s, or changing dressings.