Body systemsQuestion 1621 of 1700

What is a pulmonary embolism?

  1. A swollen vein in the rectum that bleeds often
  2. A tear in the lung tissue after a hard fall
  3. An infection of the airways with a bad cough
  4. A clot that breaks loose and blocks the lungs
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Correct answer: A clot that breaks loose and blocks the lungs

A clot travels through the blood and gets stuck in the lungs. It is life-threatening.

Source: Nursing Assistant (Reuter), 11.2: Cardiovascular System

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Questions last reviewed: 18 October 2026