Practice Quiz

NREMT Paramedic

Category - Cardiology

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What is the proper term for the amount of blood pumped from one ventricle of the heart during one contraction?
  1. Stroke limit
  2. Stroke weight
  3. Stroke volume
  4. Stroke rate
Explanation
Answer: C -Stroke volume is the volume of blood pumped from one ventricle of the heart with each beat. Stroke volume is determined by preload, after load, and contractile force. The greater volume of the preload is, the more the ventricles are stretched. The more the ventricles stretch, up to a certain point, the greater the subsequent cardiac contractions. This is referred to as Starling’s law of the heart.
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