The diver was a 19-year-old woman in good physical condition. She denied any history of medical problems and did not take any medications regularly. She completed her confined-water training several weeks before with no problems and was now doing her open-water training dives.
The largest association of recreational scuba divers in the world, DAN is supported by membership dues and donations. DAN's mission is to help divers in need of medical emergency assistance and to promote dive safety through research, education, products and diving services.