Safety tips for hot weather conditions

Netcare has urged residents to avoid the dangers of hot weather.

With hot temperatures over much of South Africa, the potential health risks of heat exposure should not be underestimated.

“Heatstroke is a medical emergency. Members of the public are urged to take the necessary precautions during widespread heatwave conditions experienced across the country to prevent medical emergencies linked to high temperatures,” said Mande Toubkin, Netcare’s general manager of emergency, trauma, transplant and corporate social investment.

“In hot and humid conditions, a person can develop heat exhaustion quickly, especially if they are physically active and not drinking enough fluids,” said Toubkin.

Toubkin said extra care is needed for children and older people in the heat, as well as individuals with chronic conditions such as epilepsy, high blood pressure or diabetes.

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Certain medications, such as diuretics, can also increase vulnerability to dehydration and heat stroke.
Toubkin said prevention is always preferable to the health complications of hyperthermia. Keep safe and cool in the heat.

Shalen Ramduth, Netcare 911’s operations director, said heatstroke must be treated as an emergency requiring medical attention.

“Usually, our bodies can regulate our temperature by releasing excess heat via the skin or through the evaporation of perspiration, but in extreme heat and humidity, the body may not be able to cool itself fast enough, leading to heat exhaustion or heat stroke.

“Dehydration and overexertion can also cause a person to develop potentially serious heat-related conditions,” added Ramduth.

Signs and symptoms of heat exhaustion include nausea, headache, vomiting, fatigue, muscle cramps, aches and dizziness.

Ramduth said that heatstroke, which occurs when a person’s temperature reaches or exceeds 40 degrees Celsius, has symptoms that may differ from person to person.

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These may include symptoms similar to heat exhaustion such as dry, flushed skin without sweating, a rapid pulse, difficulty breathing, confusion, unusual behaviour, seizures, and loss of consciousness.

“Seek medical assistance as soon as possible if you notice any of these symptoms because if not treated properly and promptly, heatstroke can cause a person to slip into a coma and suffer organ failure,” said Ramduth.

“Immediately start cooling the person down by moving them to a cooler area out of direct sunlight, loosening or removing excess clothing, and, if they are conscious while waiting for help, placing them in a bath of lukewarm water.”

“Do not use cold water to cool a person with heat exhaustion or suspected heatstroke as this can trap heat and prevent it from escaping from the body’s core,” he said.

Ramduth said one of the greatest dangers, which can lead to heatstroke and sometimes profound tragedy, is leaving someone in a parked vehicle in the sun.

On a day of just 26.6 degrees Celsius, an experiment by the US Centre for Disease Control monitored the internal temperature of a parked car soared to 42.7C in just 20 minutes. After an hour, inside the car was 50C – almost twice the external temperature.

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Safety tips for hot weather:

• Sun damage is an ever-present danger. Parents must regularly apply sunscreen with high protection factors to their children.

• Outdoor activities should be avoided during the hottest part of the day.

• Drink plenty of water, and avoid alcohol and caffeinated drinks.

• Sports rehydration drinks can be used to replace electrolytes lost from perspiration.

• Senior citizens and children are more vulnerable to heat exhaustion and heatstroke, so take special care to keep them cool and well-hydrated.

• Antihistamines, diuretics, and alcohol should be avoided if spending time in the sun.

• Never leave anyone – including a pet – in a parked car, even for short periods.

• Get into the habit of checking the backseat of your vehicle every time you park to ensure no one is forgotten.