Practice Quiz

NREMT EMR First Responder

Category - Shock and Resuscitation

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All of the following statements are related to ventricular fibrillation except one. Which statement does not relate to ventricular fibrillation?
  1. Ventricular fibrillation occurs in the upper chambers of the heart
  2. Ventricular fibrillation causes the brain and other vital organs to receive insufficient oxygen
  3. Patients with ventricular fibrillation will be unresponsive
  4. Patients with ventricular fibrillation will not have a detectable pulse
  5. Patients with ventricular fibrillation will not be breathing
Explanation
Answer: A - All of the statements above are true of ventricular fibrillation except that ventricular fibrillation occurs in the lower chambers of the heart. Ventricular fibrillation results from disorganized electrical activity in the heart, which causes the cardiac muscle contractions to become unsynchronized. Thus, the lower portion of the heart is unable to produce an organized contraction strong enough to move blood throughout the body to reach all vital organs.
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