By the time a person becomes severely dehydrated, there is no
longer enough fluid in the body to carry enough blood to vital organs. Shock,
which is a life-threatening condition, can develop quickly.
A severely dehydrated person may not be able to cooperate or
communicate.
Symptoms of severe dehydration (even if only
one of them is present) include:
- Altered behavior, such as severe anxiety,
confusion, or not being able to stay awake.
- Faintness that is not
relieved by lying down, or lightheadedness that continues after standing for 2
minutes.
- Inability to stand or walk.
- Rapid
breathing.
- Weak, rapid pulse.
- Cold, clammy skin or hot,
dry skin.
- Little or no urine for 12 hours or
longer.
- Loss of consciousness.
Severe dehydration is a medical emergency and requires emergency
treatment. Call 911 or other emergency services immediately.
