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When should I call the doctor if I suspect someone is dehydrated?

Signs of dehydration

If you suspect that someone is dehydrated, seek immediate medical attention.

Signs of dehydration include:

  • Fatigue
  • Loss of appetite
  • Flushed skin
  • Heat intolerance
  • Light-headedness
  • Dark-colored urine
  • Dry cough

The best way to beat dehydration is to drink before you get thirsty. If you wait until after you're thirsty, you're already dehydrated.