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9 Cards in this Set
- Front
- Back
function of the cardiovascular system
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supply oxygen, metabolic fuels, and hat to every cell of the organism and to remove metabolic end products and excessive heat
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most useful clinical measurement of overall ventricular function
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cardiac output
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cardiac output (CO)
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the volume of blood that is pumped into the aorta per unit of time (L/min)
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What other equation is the equation for cardiac output related to?
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Ohm's law
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cardiac output equation
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CO = heart rate * stroke volume = delta P / R
where delta P = aortic - central venous pressure (arterial pressure), and R = total peripheral resistance |
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how to measure cardiac output
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Fick principle
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Fick principle
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in a steady state, the rate of indicator leaving the system (QC out) must equal the rate at which it enters (QC in) plus the rate at which it was added (V)
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Fick principle equation
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Q = V / (C2 - C1)
where Q = flow, V = rate of indicator introduced into system, and C1 and C2 = concentrations of indicator before and after passing location where indicator was introduced |
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stroke volume (SV)
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the volume of blood pumped into the aorta during one cardiac cycle
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