Air ambulance refers to a medical transport service which is typically conducted by helicopter or plane. This service is designed to provide medical support in times of emergency situations which require immediate attention. As far as synonyms are concerned, it can be referred to as a medical evacuation or aero medical transportation. Other synonyms are medical transport, medical air transport, air medical services, aeromedical evacuation, emergency medical flights, and medical flight transport. These terms can also be region-specific depending on where the service is offered. Regardless of the name used, the service involves the transportation of critical patients from one location to another, often to a hospital for specialized care.