Day 2 — Preload, afterload, BP, heart failure

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Last updated 1:19 PM on 6/10/26
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6 Terms

1
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What is preload?
The amount of blood filling/stretching the ventricle before contraction.
2
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How does poor contractility affect cardiac output?
The heart cannot squeeze strongly enough, so stroke volume and cardiac output drop.
3
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What can cause poor contractility?
Heart failure, myocardial infarction, or cardiomyopathy.
4
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What happens when stroke volume drops?
Cardiac output drops.
5
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What happens when cardiac output drops?
Perfusion to organs decreases.
6
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