Term
| What is the cause of the frank-starling compensatory mechanism? |
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Definition
| activated when there is an increased end diastolic volume in the heart |
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Term
| What changes does the frank-starling compensatory mechanism cause? |
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Definition
| Causes an increase in the number of systolic actin-myosin cross-bridges that develop increasing the strength of contraction |
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Term
| What cause active relaxation of diastole? |
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Definition
| Ca being pumped out of the myocardium |
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Term
| If passive diastolic relaxation is impeaded by stiffness in the myocardium, what results? |
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Definition
| increase in filling pressure leading to pulmonary and systemic congestion |
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Term
| What is the "classic" example of high-output failure? |
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Definition
| chronic severe anemia (other causes include AV fistula, beriberi and thyrotoxicosis) |
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Term
| Which type of heart failure is described as cardiac output that may be several times higher than normal but is still not adequate to maint as in tissue perfusion? |
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Definition
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Term
| What is the MCC of right sided heart failure? |
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Definition
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Term
| What is the MCC of right sided heart failure? |
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Definition
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Term
| Aside from left sided heart failure, what are some other causes of right sided he as rt failure? |
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Definition
| COPD, PE, primary pulmonary HTN |
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