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8 Cards in this Set
- Front
- Back
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what is an MET
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metabolic equivalent - metabolic cost
1 MET = resting metabolic rate = 3.5mlO2/kg/min |
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what are the determinants of myocardial oxygen demand?
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contractility, wall tension, HR
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what are the determinants of coronary blood flow?
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diastolic perfusion pressure, coronary vascular resistance, O2 carrying capacity
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what is the fick equation?
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VO2 = (QxHR) x (CaO2 - CvO2)
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what are the determinants of end diastolic volume?
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ventricular preload - peripheral resistance, static muscle contraction and intrathoracic pressure
compliance - age and myocardial disease |
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what are the determinants of End systolic volume?
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ventricular afterload - peripheral resistance, static muscle contraction and intrathoracic pressure
contractility - |
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ejection fraction?
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SV/EDV
clinical index of contractility |
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frank-starling law and sympathetic nerve effects
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increased contractility caused by circulating catecholamines and sarcoplasmic reticulum function
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