Abstract: An adjustable arm support for attachment to a medical stretcher for use in supporting in a fixed position the arm of a person sitting or lying on the stretcher. The arm support would attach to one of the side rails of a stretcher, attach equally well to the left and right sides of the stretcher, and be foldable against the side rail when not needed for use. Also, when the side rail of the stretcher is lowered, the arm support attached to it assumes an out-of-the-way position beneath the stretcher. A swivel unit and locking bolts would allow for adjustment of the height of the arm support, as well as its pitch and yaw movement. In the preferred embodiment hook and pile fasteners would be used to secure a person's arm to the arm support. Also, when the person leaves the stretcher, the arm support could be detached from the stretcher, while continually supporting the person's arm, and moved with the person for subsequent attachment to other objects.