Physiological AdaptationQuestion 106 of 2368

Which finding is an early sign of hypoxia?

  1. Cyanosis
  2. Clubbing of the fingertips
  3. Barrel chest
  4. Restlessness
Show answer

Correct answer: Restlessness

Early hypoxia causes anxiety, confusion and restlessness. Cyanosis is a late sign, and clubbing and barrel chest are chronic findings.

Source: Nursing Fundamentals, 2nd edition (Open RN, Chippewa Valley Technical College, 2024), Oxygenation: Hypoxia and Hypercapnia. Licensed under CC BY 4.0.

Practice the topic "Physiological Adaptation"

Questions last reviewed: 18 October 2026