Heat Index Chart
HEAT
INDEX CHART
Apparent |
Heat
Stress Risk with Physical Activity |
90° - 105° |
Heat cramps or heat exhaustion possible |
105° - 130° |
Heat cramps or heat exhaustion likely Heatstroke possible |
130°+ |
Heatstroke highly likely |
SIGNS
OF HEAT-RELATED ILLNESS
1) HEAT CRAMPS
Causes: Loss of electrolytes and accumulation of lactic acid
in the muscles.
Conditions: Muscle cramps and/or spasms, heavy sweating, normal body temperature.
Treatment: Drink water and sports drink, slow down, massage affected area.
2)
HEAT EXHAUSTION
Causes: Intense exercise in a hot, humid condition and loss
of electrolytes.
Conditions: Profuse sweating, possible drop in blood pressure (less than 90 systolic, the top number), normal or slightly elevated body temperature, lightheadedness, nausea, vomiting, decreased coordination, possible fainting.
Treatment: Rest in a cool place, drink water and sports drink, if BP drops below 90 systolic, call EMS, avoid activity for at least 24 hours, refrain from running or exercising in the heat for at least one week.
3)
HEAT STROKE
This is a medical emergency!
Causes: Intense exercise in a hot, humid condition, older age, dehydration, obesity, wearing heavy clothing, running in the heat when you have an infection or fever, certain drugs such as amphetamines, diuretics, beta blockers, cardiovascular disease, poor acclimatization, high blood pressure.
Conditions: High body temperature (106 or higher), lack of sweating characterized by dry, red skin, altered consciousness.
Treatment: Call EMS! Rest in a cool place, remove clothing to expose skin to air, apply ice packs or cool water to groin, underarms, neck (stop if shivering).
