Adjust the top leg so that both the hip and knee are bent at right angles. Gently tilt the head back to keep the airway open. Keep the person warm until medical help is obtained. If breathing or circulation stops at any time, roll the person back on to his or her back and begin CPR.
Update Date 7/20/2013
Updated by: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.