Term
| What is the normal value for EF? |
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Definition
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Term
| Which valves are supported by chordae tendonae? |
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Definition
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Term
| What is the formula for CO? |
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Definition
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Term
| What instrument can measure the CO? |
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Definition
| Swan-Ganz Catheter in the pulmonary artery |
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Term
| What is preload measured by? |
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Definition
| Left Ventricular End Diastolic Pressure (LVEDP)/Left Ventricular End Diastolic Volume (LVEDV) |
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Term
| What are the four determinants of preload? |
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Definition
Total Blood Volume
Distribution of blood volume
Atrial contraction
Compliance |
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Term
| Due to La Place's Law what happens to velocity when vessel walls narrow? What happens when they widen? |
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Definition
Narrow - Velocity Increases
Widen - Velocity Decreases |
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Term
| What do positive ionotropic drugs do to myocardial contractility? |
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Definition
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Term
| What do negative ionotropic drugs do to myocardial contractility? |
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Definition
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Term
| How is ejection fraction measured? |
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Definition
MUGA (Not really used much anymore)
Echo (Widely used)
Cardiac Catheterization |
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Term
| According to Frank-Starling Mechanism, how does the heart compensate when it is stretched? |
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Definition
| Compensates with hypertrophy (Contractility and HR will also increase) |
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Term
| How does the heart compensate for an increased End-Diastolic Volume? (ON BOARDS) |
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Definition
| Ventricles will compensate with hypertrophy |
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