![]() ![]() Some basic guidelines for acclimatization are: Going slowly helps your lungs get more air through deeper breaths and allows more of your red blood cells to carry oxygen to different parts of your body. ![]() You’ll want to climb to higher altitudes gradually. That means you let your body slowly get used to the changes in air pressure as you travel to higher elevations. ![]() The best way you can lower your chance of getting altitude sickness is through acclimatization. If you have HAPE, you will need supplemental oxygen and may need medications, as well as moving to a lower altitude. To treat HACE, you might need a steroid called dexamethasone. Your doctor might listen to your chest with a stethoscope or take an X-ray of your chest or an MRI or CT scan of your brain to look for fluid. If your symptoms are severe, or if mild symptoms don’t go away in a couple of days or get worse, get to a lower elevation as quickly as possible. ![]() Don’t go any higher until your symptoms are completely gone. Rest, keep warm, and have plenty of liquids. For mild symptoms, you can try staying at your current altitude to see if your body adjusts. If you get a headache and at least one other symptom linked to altitude sickness within a day or two of changing your elevation, you might have altitude sickness. So are people who have had recent heart attacks or strokes. People who have sickle cell anemia, COPD, unstable angina, a high-risk pregnancy, heart failure, or cystic fibrosis are less likely to be able to tolerate the change in altitude. Having certain illnesses like diabetes or lung disease doesn’t automatically make you more likely to develop altitude sickness. Your risk also depends on where you live and the altitude there, your age (young people are more likely to get it), and whether you’ve had altitude sickness before. Your chance of getting altitude sickness depends on a few other things: how quickly you move to a higher elevation, how high you go up, the altitude where you sleep, and other factors. In fact, being physically active at a high elevation makes you more likely to get it.
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