A professional who provides health care services to patients under direction and responsibility of physician. Responsibilities include:

• Examines patient, performs comprehensive physical examination, and compiles patient medical data, including health history and results of physical examination.
• Administers or orders diagnostic tests, such as x ray, electrocardiogram, and laboratory tests, and interprets test results for deviations from normal.
• Performs therapeutic procedures, such as injections, immunizations, suturing and wound care, and managing infection.
• Develops and implements patient management plans, records progress notes, and assists in provision of continuity of care.
• Instructs and counsels patients regarding compliance with prescribed therapeutic regimens, normal growth and development, family planning, emotional problems of daily living, and health maintenance.
• May have training in particular medical specialty and be designated Anesthesiologist Assistant or Surgeon Assistant.