Victim appears dead. Little or no breathing or pulse, body rigid. Assume victim can be revived. Look for faint pulse or breathing for two minutes. It can cause cardiac arrest.
Medical help is imperative.
If pulse and breathing are totally absent, CPR should be started by trained medical personnel. Planning Ahead Wear clothing that permits safe cold-water immersion and a life jacket. It is the only way to combat the risk posed by cold-water boating. These fabrics do not effectively retard heat loss in cold water. They are warm when damp, after being wrung out, due to air trapped in the fibers.