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.

Physical therapists assess patients and create plans to help them improve their movement, relieve pain and increase strength. They evaluate the effects of treatment and adjust to maximize the benefits. Physical therapists also test the patient’s strength, motor skills and functions, sensory perceptions, respiratory or circulatory efficiency and show patients how to perform the prescribed exercises and review progress. Physical therapists help decrease or prevent problems due to disease or injury.

Nurse practitioners diagnose and treat both sudden and long-term conditions. They may do physical exams, physical therapy or order tests and therapies for patients. NPs order, perform or interpret results of blood tests, EKGs and X-rays. They use these tools, along with patient symptoms and medical history to develop the right diagnosis.