Practice Quiz

NREMT Advanced EMT

Category - Cardiology

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What is a passive event and occurs during diastole?
  1. Bi-cular filling
  2. Ventricular filling
  3. Cardiac bypass
  4. All of the above
Explanation
Answer - B - Ventricular filling is a passive event and occurs during diastole. Only 25% of blood volume is pumped into the ventricle by the atria. The important factor that affects ventricular filling is preload, or the amount of blood that is returned to the heart. A decreased preload will result in a decline in filling pressure and a diminished force of contraction.
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