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11 Cards in this Set
- Front
- Back
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Formulas for cardiac output (CO) |
CO = Rate of O2 consumption / (arterial O2 content - venous O2 content) CO = SV (stroke volume) x HR (heart rate) |
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Formulas for mean arterial pressure (MAP) |
MAP = CO (cardiac output) x TPR (total peripheral resistance) MAP = 1/3 SBP (systolic BP) + 2/3 DBP (Diastolic BP) |
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Formula for stroke volume (SV) |
SV = EDV (End diastolic volume) - ESV (end systolic volume) |
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Formula for ejection fraction (EF) |
EF = SV (stroke volume) / EDV (end diastolic volume) x 100 |
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Resistance formula |
Resistance = 8 x viscosity x L (length) / 3.14 x r^4 |
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Formulas for net filtration pressure (NFP) |
NFP = (PC - PI) - (piC - piI) PC = Hydrostatic capillary pressure, PI = hydrostatic interstitial pressure, piC = Osmotic capillary pressure, piI = Osmotic interstitial pressure |
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Formulas for glomerular filtration rate (GFR) |
GFR = Kf (PGC - PBS) - (PiGC - PiBS) GFR = Cinulin = Uinulin V / Pinulin PGC = Hydrostatic pressure in glomerular capillaries, PBS = hydrostatic pressure in Bowman's space, Pi = osmotic pressure of those same areas. Cinulin = clearance of paraaminohippuric acid(PAH), Uinulin = Urine concentration of PAH, V Urine flow rate, Pinuline = plasma concentration of PAH |
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Formula for effective renal plasma flow |
CPAH = UPAH x V / PPAH CPAH = Clearance of PAH, UPAH = Urine concentration of PAH, V = urine plasma flow, Ppah = plasma concentration of PAH |
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Formula for renal blood flow |
RPF / (1 - Hct) RPF = Renal plasma flow Hct = Hematocrit |
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Formula for filtration fraction |
GFR / RPF GFR = Glomerular filtration rate RPF = Renal plasma flow |
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Formula for free water clearance |
CH20 = V - Cosm, where Cosm = Uosm V / Posm CH20 = Clearance of water Uosm = Urine osmolarity Posm = Plasma osmolarity V = Urine flow rate |
