Physician assistants provide health care services under a physician’s supervision. They perform tasks that are usually performed by doctors. They conduct physical exams and provide treatment, and counsel patients. Physician assistants may prescribe medications.

Clinical nurse specialists (CNSs) plan, direct and coordinate the daily patient care activities in a clinical practice. CNSs ensure adherence to clinical policies, protocols, regulations and standards.

Registered nurses (R.N.s) care for sick and injured patients. Registered nurses will assess patient health problems and needs, develop and implement nursing care plans, and maintain medical records. Registered nurses monitor and record patients’ conditions and report any changes to physicians. They maintain detailed reports, record vital signs, and order, interpret and evaluate tests to identify and assess patients’ conditions and work closely with patients and their families.