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What is hypothermia? — This is when the body gets very cold and can't warm up on its own. Body temperature is normally around 98.6°F (37°C). Hypothermia is when it drops below 95°F (35°C).
Hypothermia can happen after being in cold air or water for too long. Young children and older adults are more likely to get hypothermia.
Hypothermia can cause serious problems if it is not treated quickly. In severe cases, it can even cause death.
What are the symptoms of hypothermia? — Symptoms can include (table 1):
●Shivering (but if hypothermia becomes severe, the person might actually stop shivering)
●Clumsiness
●Trouble speaking clearly
●Confusion
●Feeling tired
●Breathing faster than usual
●Urinating more than usual
Because hypothermia can happen slowly and cause confusion, a person might not realize that they have it.
How can I help a person who might have hypothermia? — If you think that someone might be in danger of hypothermia, you should:
●Move them to a warmer place as soon as possible.
●Take off any wet clothing.
●Cover them with blankets.
●Offer warm beverages if they can drink.
Frostbite is damage to a body part caused by cold. If you think that you or another person might have frostbite, do not rub or massage their skin. This can cause worse damage.
When should I call for help? — If a person shows signs of moderate or severe hypothermia, get medical care right away. Signs include passing out, trouble speaking or thinking clearly, clumsiness, loss of shivering, and trouble breathing. Waiting to get treatment could cause serious health problems. If hypothermia is severe, it can even cause death.
How is hypothermia treated? — It depends on how serious it is. In many cases, getting out of the cold and warming up with blankets can prevent the need for medical care.
Severe hypothermia needs to be treated in the hospital. Doctors will check the person's temperature. They will also try to make sure that the person keeps breathing and their heart keeps beating.
Depending on how cold the person is, hospital treatment might include any of the following:
●Blankets, heating pads, warm baths, or heaters that blow warm air – These can all be used to help bring a person's body temperature back up.
●Warm fluids through an IV (a thin tube that goes into a vein)
●Warm oxygen to breathe, or a breathing tube if needed
●Warming the inside of the body with water – Warm salt water can be used to bring heat to the organs. The water goes into the body through a small tube, then back out.
●Medicines – Sometimes, medicines are needed to treat related issues. Examples include medicines for low blood pressure or heart problems.
●Blood rewarming – This is done with a special machine. The machine pulls blood out of the body, warms it up, and then puts it back in.
Can hypothermia be prevented? — Yes. In most cases, you can prevent it by not staying out in the cold for too long. Dress warmly enough, and wear layers. Change out of wet clothes as quickly as possible.
Some people are more likely than others to get hypothermia. They include:
●Babies and young children – Babies and young children are more likely than adults to get hypothermia. That's because their bodies have a harder time keeping warm. They also might not notice when they are getting too cold. Make sure that children are dressed warmly and wear hats and mittens in cold weather. Don't let them play outside in the cold for too long without taking a break to warm up.
●Older adults – Older adults have a harder time than younger adults keeping warm. They are also more likely to have health issues or take medicines that can affect body temperature. You can help older people by making sure that their homes are kept warm enough, especially in winter.
●People who have problems with alcohol – This is because alcohol can make it harder to notice when your body is getting too cold. Drinking too much alcohol can also cause you to pass out. This can lead to hypothermia in cold weather. If you think that you or someone you know might have a drinking problem, talk to a doctor or nurse.
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