Aeromedical factorsQuestion 894 of 934

What is the most common symptom of altitude-induced decompression sickness?

  1. Pain in the ears and the sinuses
  2. Numbness in the hands
  3. Pain in the upper teeth
  4. Joint pain, known as the bends
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Correct answer: Joint pain, known as the bends

Nitrogen bubbles form when the body is exposed to a low barometric pressure.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17: Aeromedical Factors — Altitude-Induced Decompression Sickness (DCS), page 440

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Questions last reviewed: 18 October 2026