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  2. Altitude sickness - Wikipedia

    en.wikipedia.org/wiki/Altitude_sickness

    [1] [2] [3] People can respond to high altitude in different ways. Symptoms may include headaches, vomiting, tiredness, confusion, trouble sleeping, and dizziness. [1] Acute mountain sickness can progress to high-altitude pulmonary edema (HAPE) with associated shortness of breath or high-altitude cerebral edema (HACE) with associated confusion.

  3. High-altitude pulmonary edema - Wikipedia

    en.wikipedia.org/wiki/High-altitude_pulmonary_edema

    Emergency medicine, wilderness medicine. High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema that occurs in otherwise healthy people at altitudes typically above 2,500 meters (8,200 ft). [2] However, cases have also been reported between 1,500–2,500 metres or 4,900–8,200 feet in more vulnerable ...

  4. Effects of high altitude on humans - Wikipedia

    en.wikipedia.org/wiki/Effects_of_high_altitude...

    Climbing Mount Rainier.. The effects of high altitude on humans are mostly the consequences of reduced partial pressure of oxygen in the atmosphere. The medical problems that are direct consequence of high altitude are caused by the low inspired partial pressure of oxygen, which is caused by the reduced atmospheric pressure, and the constant gas fraction of oxygen in atmospheric air over the ...

  5. Pulmonary edema - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_edema

    Pulmonary edema (British English: oedema), also known as pulmonary congestion, is excessive fluid accumulation in the tissue or air spaces (usually alveoli) of the lungs. [1] This leads to impaired gas exchange, most often leading to shortness of breath (dyspnea) which can progress to hypoxemia and respiratory failure.

  6. Hypoxic pulmonary vasoconstriction - Wikipedia

    en.wikipedia.org/wiki/Hypoxic_pulmonary...

    Hypoxic pulmonary vasoconstriction. Hypoxic pulmonary vasoconstriction (HPV), also known as the Euler-Liljestrand mechanism, is a physiological phenomenon in which small pulmonary arteries constrict in the presence of alveolar hypoxia (low oxygen levels). By redirecting blood flow from poorly-ventilated lung regions to well-ventilated lung ...

  7. Decompression sickness - Wikipedia

    en.wikipedia.org/wiki/Decompression_sickness

    Decompression sickness (DCS; also called divers' disease, the bends, aerobullosis, and caisson disease) is a medical condition caused by dissolved gases emerging from solution as bubbles inside the body tissues during decompression. DCS most commonly occurs during or soon after a decompression ascent from underwater diving, but can also result ...

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