However, any one team may not consist of all these different kinds of providers. Physician assistants are certified by the National Commission on Certification of Physician Assistants. PAs must pass a test from the National Board of Medical Examiners. PAs take patient histories, perform physical exams, and diagnose and treat common medical problems. They also order and interpret diagnostic tests and write prescriptions.
Nurse practitioners are advanced registered nurses.
Some have studied in a nursing program and earned a certificate. Others have completed graduate work and received a master's degree. Each ARNP meets state-license requirements and national certification for advanced nursing practice. They often work in specialized programs, such as family practice, pediatrics, and women's health care. They perform physical exams plus treat and prescribe medications for common medical problems.