An emergency medical system for use in an aircraft. In one embodiment, the system includes a deployable chair and upper and lower support members for supporting the deployable chair, the deployable chair being pivotally interconnected to the upper support member. In the deployed configuration, the deployable chair is releasably interconnectable to the lower support member, which is one of a floor platform of the aircraft and a vertically adjustable litter platform. In the stowed configuration, the deployable chair is releasably interconnectable to an upper portion of the aircraft, such as a ceiling surface to allow patients to be received on at least one vertically adjustable litter platform located there below.