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How to Beat the Heat Safety Tips - Iowa-Illinois Safety Council

Posted by Pekin Insurance on Aug 06, 2013

Heat is one of the leading weather-related killers in the United States, resulting in hundreds of fatalities each year. During the disastrous heat wave of 1980, more than 1,250 people died. During the heat wave of 1995, more than 700 deaths in the Chicago area were attributed to heat, making this the deadliest weather event in Chicago history. In August 2003, a record heat wave in Europe claimed an estimated 50,000 lives.

North American summers are hot; most summers see heat waves in one or more parts of the United States. East of the Rockies, they tend to combine both high temperatures and high humidity, although some of the worst heat waves have been catastrophically dry.

The Hazards of Excessive Heat

During extremely hot and humid weather, the body's ability to cool itself is affected. When the body heats too rapidly to cool itself properly, or when too much fluid or salt is lost through dehydration or sweating, body temperature rises and heat-related illnesses may develop.

Heat-related illnesses can range from heat cramps to heat exhaustion to more serious heat stroke. Heat stroke can result in death and requires immediate medical attention.

Factors or conditions that can make some people more susceptible to heat-related illnesses include age (older adults and young children), obesity, fever, heart disease, mental illness, poor circulation, prescription drug and alcohol use, and sunburn. Sunburn, caused by ultraviolet radiation from the sun, can significantly retard the skin's ability to shed excess heat.

Heat-Related Illness Symptoms and First Aid

• Symptoms:
o Painful muscle cramps and spasms usually in legs and abdomen.
o Heavy sweating.

• First Aid:
o Apply firm pressure on cramping muscles or gentle massage to relieve spasm.
o Give sips of water; if nausea occurs, discontinue water.

• Symptoms:
o Heavy sweating.
o Weakness.
o Cool, pale, clammy skin.
o Weak pulse.
o Possible muscle cramps.
o Dizziness.
o Nausea and vomiting.
o Fainting.
o Normal temperature possible.
• First Aid:
o Move person to a cooler environment.
o Remove or loosen clothing.
o Apply cool, wet cloths.
o Fan or move victim to air-conditioned room.
o Offer sips of water. If nausea occurs, discontinue water. If vomiting continues, seek
immediate medical attention.

HEAT STROKE (or sunstroke)
• Symptoms:
o Altered mental state.
o Possible throbbing headache, confusion, nausea, dizziness, shallow breathing.
o High body temperature (106°F or higher).
o Skin may be hot and dry or patient may be sweating.
o Rapid pulse.
o Possible unconsciousness.
• First Aid:
o Heat stroke is a severe medical emergency. Summon emergency medical
assistance or get the victim to a hospital immediately. Delay can be fatal.
o Move the victim to a cooler, preferably air-conditioned, environment.
o Reduce body temperature with a water mister and fan or sponging.
o Use fan if heat index temperatures are below the high 90s.
o Use extreme caution.
o If temperature rises again, repeat process.
o Do NOT give fluids.

Never Leave Children, Disabled Adults, or Pets in Parked Vehicles

Each year, dozens of children and untold numbers of pets left in parked vehicles die from hyperthermia. Hyperthermia is an acute condition that occurs when the body absorbs more heat than it can handle.

Hyperthermia can occur even on a mild day. Studies have shown that the temperature inside a parked vehicle can rapidly rise to a dangerous level for children, pets, and even adults. Leaving the windows slightly open does not significantly decrease the heating rate. The effects can be more severe on children because their bodies warm at a faster rate than adults.

How Fast Can the Sun Heat a Car?

The atmosphere and the windows of a car are relatively transparent to the sun's shortwave radiation and are warmed little. This shortwave energy, however, does heat objects it strikes. For example, a dark dashboard or seat can easily reach temperatures in the range of 180°F to more than 200°F. These objects (e.g., dashboard, steering wheel, child seat) heat the adjacent air by conduction and convection and give off longwave radiation (infrared), which efficiently warms the air trapped inside a vehicle.

Safety Tips for Children

• Make sure your child's safety seat and safety belt buckles aren't too hot before securing your child in a safety restraint system, especially when your car has been parked in the heat.
• Never leave your child unattended in a vehicle, even with the windows down.
• Teach children not to play in, on, or around cars.
• Always lock car doors and trunks—even at home—and keep keys out of children's reach.
• Always make sure all children have left the car when you reach your destination. Don't
leave sleeping infants in the car ever.

Safety Tips for Adults

• Slow down. Reduce, eliminate, or reschedule strenuous activities until the coolest time of the day. Children, seniors, and anyone with health problems should stay in the coolest available place, not necessarily indoors.
• Dress for summer. Wear lightweight, light-colored clothing to reflect heat and sunlight.
• Put less fuel on your inner fires. Foods, like meat and other proteins, that increase metabolic heat production also increase water loss.
• Drink plenty of water and non-alcoholic and decaffeinated fluids. Your body needs water to keep cool. Drink plenty of fluids even if you don't feel thirsty. Persons who have epilepsy or heart, kidney, or liver disease; are on fluid-restrictive diets; or have a problem with fluid retention should consult a physician before increasing their consumption of fluids. Do not drink alcoholic beverages and limit caffeinated beverages.
• During excessive heat periods, spend more time in air-conditioned places. Air conditioning in homes and other buildings markedly reduces danger from the heat. If you cannot afford an air conditioner, go to a library, store, or other location with air conditioning for part of the day.
• Don’t get too much sun. Sunburn reduces your body’s ability to dissipate heat.
• Do not take salt tablets unless specified by a physician.


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