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DCHD Officials Caution of
Heat Exhaustion

The Duval County Health Department asks individuals to be aware of the warning signs of heat exhaustion. Heat Exhaustion is a milder form of heat-related illness that can develop after several days of exposure to high temperatures and inadequate or unbalanced replacement of fluids. Those most prone to heat exhaustion are elderly people, people with high blood pressure, and people working or exercising in a hot environment.

Warning signs of heat exhaustion include the following:

  • Heavy sweating
  • Paleness
  • Muscle cramps
  • Tiredness
  • Weakness
  • Dizziness
  • Headache
  • Nausea or vomitting
  • Fainting

The skin may be cool and moist. The victim's pulse rate will be fast and weak, and breathing will be fast and shallow. If heat exhaustion is untreated, it may progress to heat stroke. Seek medical attention immediately if any of the following occurs:  

  • Symptoms are severe.

  • The victim has heart problems or high blood pressure.

Otherwise, help the victim to cool off and seek medical attention if symptoms worsen or last longer than one hour.

What to do -
Cooling measures that may be effective include the following:

  • Cool, non-alchoholic beverages, as directed by your physician
  • Rest
  • Cool shower, bath or sponge bath
  • An air-conditioned environment
  • Lightweight clothing

For more information about the effects of heat exhaustion, call the DCHD Environmental Health Division at 904-253-1280, or visit www.bt.cdc.gov, 800-CDC-INFO (800-232-4636) TTY: (888) 232-6348.


Duval County Health Department
900 University Blvd. N.
Jacksonville, FL 32211
253-1000

Copyright ©  2003 Duval County Health Department. All rights reserved.