Skip to Content
UW Health SMPH
American Family Children's Hospital
DONATE Donate
SHARE TEXT

Heatstroke: Emergency Symptoms

Topic Overview

Signs of rapidly progressing heatstroke include:

  • Unconsciousness for longer than a few seconds.
  • Convulsion (seizure).
  • Signs of moderate to severe difficulty breathing.
  • A rectal temperature over 104°F (40°C) after exposure to a hot environment.
  • Confusion, severe restlessness, or anxiety.
  • Fast heart rate.
  • Sweating that may be heavy or may have stopped.
  • Skin that may be red, hot, and dry, even in the armpits.
  • Severe vomiting and diarrhea.

After calling 911 or other emergency services, begin emergency first aid treatment if emergency medical personnel (such as paramedics) are not going to arrive soon.

Related Information

Credits

By Healthwise Staff
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
H. Michael O'Connor, MD - Emergency Medicine
Last Revised August 30, 2013

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

© 1995-2014 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.