SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ski-altitude-hape-descend

If fluid in the lungs (HAPE) is suspected at altitude, what is most important?

Descend urgently and get medical help.

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  1. Rest in place for several days
  2. Do hard exercise to clear it
  3. Descend urgently ✔

Why: HAPE is a dangerous buildup of fluid in the lungs. CDC says that in most cases going down is urgent and mandatory, and oxygen should be given if available.

Huh, didn't know that: Early HAPE symptoms include chest congestion, cough and decreased exercise performance.

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References

Answer: Descend urgently. HAPE is a dangerous buildup of fluid in the lungs. CDC says that in most cases going down is urgent and mandatory, and oxygen should be given if available.

  1. CDC Yellow Book: High-altitude travel and altitude illness www.cdc.gov/yellow-book/hcp/environmental-hazards-risks/high-altitude-travel-and-altitude-illness.html
    descent is urgent and mandatory
    Checked 2026-10-10.

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