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Which type of hypoxia comes from the lower pressure of oxygen at high altitude?

Hypoxic hypoxia.

  1. Hypemic hypoxia
  2. Hypoxic hypoxia ✔
  3. Histotoxic hypoxia

Why: The percentage of oxygen stays the same as you climb, but its pressure drops. Fewer oxygen molecules pass into the blood, so the whole body gets too little oxygen.

Huh, didn't know that: The AIM encourages using supplemental oxygen above 10,000 feet during the day and above 5,000 feet at night.

The dad joke
Oxygen and potassium went on a date. It went OK.
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Sources

  1. FAA Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17 https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/faa-h-8083-25c.pdf
  2. Aeronautical Information Manual 8-1-2, Effects of Altitude https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap8_section_1.html

Test yourself in the game

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