 In most emergencies, only the ambulance is deployed for providing patient care and transport.However, when the situation on scene is of a more severe nature, the ambulance crew can radio in for support by a physician and the "NEF" will be deployed.There are some medical situations where the "NEF" will be deployed automatically; those are usually pediatric emergencies, patients who are unconscious, emergencies including neurological or cardiovascular conditions, mass-casualty incidents, and situations where the need for analgesics and anesthetics is foreseeable.