Mild condition, the result of dehydration and a slight imbalance in electrolytes. Workers will respond to rest and rehydration with fluids.
More severe condition and treatment involves removing the employee from the hot environment to a cool location and rehydration with cool water. Seek medical advice to be sure you understand the level of exposure.
Most severe condition, with immediate emergency medical attention required.
OSHA quick reference Heat Stress cards are available free of charge in both English and Spanish. Contact your local OSHA offi ce or www.osha.gov and ask for card number 3154 or 3155. This information is presented on convenient laminated, foldup wallet type cards and provides references about heat-related injuries, including warning signs and prevention measures.