Licensed practical nurses (LPNs) may also be referred to as licensed vocational nurses (LVNs), depending on the state in which they practice. In some countries, they may be called enrolled nurses (ENs) or practical nurses (PNs). These terms all refer to nursing professionals who have completed practical nursing programs and have obtained licensure in their respective states or countries. LPNs, LVNs, ENs, and PNs provide basic nursing care under the supervision of registered nurses or physicians and may work in a variety of healthcare settings, including hospitals, nursing homes, clinics, and schools. Regardless of the name they are given, these professionals play a vital role in the delivery of patient care.