The short answer is: LOTS! An Adult Gerontological Primary Care Nurse Practitioner (AGPCNP) works as a primary care provider for patients ages 18 to old age. They may work in a clinic with a physician or have a private practice of their own. They can also work in a variety of settings such as hospices, long-term care facilities, correctional institutes, and urgent care clinics. As a primary care provider, they are the first line of defense in helping the patient maintain their health. A typical day might see them diagnosing and treating illnesses, going on wellness visits, doing health assessments, giving immunizations, and providing health counseling. Nurse practitioners can also order diagnostic testing and prescribe medications.