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Aeromedical factorsQuestion 722 of 934

Which action is the best treatment for hyperventilation?

  1. Breathe faster and deeper to raise the oxygen level
  2. Climb to a higher altitude where the air is cooler
  3. Take a decongestant and swallow often during descent
  4. Slow the breathing rate and breathe normally
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Correct answer: Slow the breathing rate and breathe normally

Breathing normally is the best prevention and cure. Talking aloud or breathing into a paper bag also helps.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Hyperventilation, page 427

Practice aeromedical factors

Questions last reviewed: 18 October 2026