As a result, they can develop accidental hypothermia after exposure to relatively mild cold weather or a drop in temperature. Accidental hypothermia can be fatal if not detected and treated promptly. If you suspect that a friend or relative may have hypothermia, take the person's temperature. A temperature below 96 degrees F. will not show up on an oral thermometer, a good sign the person should be taken to the hospital. Other warning signs include a slow irregular heartbeat, slurred speech, very slow breathing, sluggishness, or confusion which may need emergency medical treatment.
Treatment involves rewarming the body, preferably under a doctor's care in a hospital.
Until then, keep the person wrapped in a blanket to stay warm and dry. Chances for a complete recovery are best when the person's temperature has not dropped below 90 degrees F. and they are in good health. The NIA offers the following guidelines to reduce the chances of getting accidental hypothermia. Dress warmly in layers of clothing whether you're indoors or outside. Keep active and eat a balanced diet.