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ANALYSIS OF PRESSURE-VOLUME
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ANALYSIS OF PRESSURE-VOLUME
Pretest
Question 1
True or False
1. Data obtained from the in vivo heart for the purpose of determining intrinsic pump function is complex.
2. Pressures and volumes are dependent on both intrinsic variables such as contractility and muscle stiffness and extrinsic variables such as preload and afterload.
3. By viewing cardiac function mechanically, as a system having time-varying elastance, Suga et al. successfully uncoupled these variables.
4. They showed experimentally that the instantaneous pressure-to-volume ratio defines a time-varying elastance that attains the same maximum value at a fixed contractile state, regardless of preload changes.
Post test
Question 1
True or False
1. Data obtained from the in vivo heart for the purpose of determining intrinsic pump function is complex.
2. Pressures and volumes are dependent on both intrinsic variables such as contractility and muscle stiffness and extrinsic variables such as preload and afterload.
3. By viewing cardiac function mechanically, as a system having time-varying elastance, Suga et al. successfully uncoupled these variables.
4. They showed experimentally that the instantaneous pressure-to-volume ratio defines a time-varying elastance that attains the same maximum value at a fixed contractile state, regardless of preload changes.
Answer
TTTT |
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