'Altitude sickness' is caused at high altitude due to

‘Altitude sickness’ is caused at high altitude due to

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high partial pressure of oxygen

low partial pressure of oxygen

low level of haemoglobin

high partial pressure of carbon dioxide

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This question was previously asked in

UPSC CDS-2 – 2016

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Altitude sickness is caused by exposure to low partial pressure of oxygen at high altitudes.

At higher altitudes, the atmospheric pressure is lower. This results in a lower partial pressure of oxygen, which reduces the amount of oxygen that can be taken up by the lungs and delivered to the body’s tissues, leading to hypoxia.

Symptoms of altitude sickness, also known as acute mountain sickness (AMS), can include headache, nausea, dizziness, fatigue, and shortness of breath. Severe forms include High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE). Acclimatization is the process by which the body adjusts to the lower oxygen availability.

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