According to the 2016 Adult-Gerontology Acute Care And Primary Care NP Competencies, “the adult-gerontology acute care nurse practitioner (AG ACNP) provides care to adults and older adults with acute, critical and complex chronic physical and mental illnesses across the entire adult age spectrum from young adults (including late adolescents), to adults and older adults (including frail older adults). AG ACNPs are prepared to provide services ranging from disease prevention to critical care to stabilize the patient’s condition, prevent complications, restore maximum health and/or provide palliative care. The adult-gerontology primary care nurse practitioner (AG PCNP), on the other hand, “builds on the core competencies for all nurse practitioners (NPs). The AG PCNP Competencies are specific to the adult-gerontology population which includes adolescents and young adults at one end of the spectrum and frail, older adults at the other.”

Adolescence is defined as 11-21 years of age (AAP, 2019 - https://publications.aap.org/pediatrics/article/144/6/e20193150/37985/Unique-Needs-of-the-Adolescent?autologincheck=redirected). ​