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26 Cards in this Set
- Front
- Back
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Sensitivity
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TP/(TP+FN)
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Specificity
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TN/(TN+FP)
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Positive predictive value
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PPV=TP/(TP+FP)
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Negative predictive value
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NPV=TN/(TN+FN)
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Relative Risk
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[a/(a+b)]/[c/(c+d)]
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Attributable Risk
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[a/(a+b)]-[c/(c+d)]
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Number needed to treat
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1/absolute risk reduction
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Number needed to harm
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1/attributable risk
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Hardy-Weinberg equilibrium
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p^2+2pq+q^2=1
p+q=1 |
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Henderson Hasselbalch equation
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pH=pKa+log [HCO₃]/0.03 PCO2
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Volume of distribution
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Vd=amt of drug in body/plasma drug concentration
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Clearance
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CL=rate of elimination of drug/plasma drug concentration
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Half life
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(0.7*Vd)/CL
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Loading dose
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LD=Cp*(Vd/F)
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Maintenance dose
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MD=Cp*(CL/F)
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Cardiac Output
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=rate of O2 consumption/(arterial O2 content-venous O2 content)
=SV*HR |
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Mean arterial pressure
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=cardiac output*TPR
=(1/3*systolic)+(2/3*diastolic) |
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Stroke volume
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=end diastolic volume-end systolic volume
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Ejection fraction
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(stroke volume/end diastolic volume)*100
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Resistance
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=driving pressure/flow
=(8*viscosity*length)/(πr^4) |
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Net filtration pressure
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[(Pc-Pi)-(πc-πi)]
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GFR
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=Uinulin*(V/Pinulin)
=Cinulin =Kf[(Pgc-Pbs)-(πgc-πbs)] |
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effective renal plasma flow
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=Upah*(V/Ppah)
=Cpah |
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renal blood flow
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RPF/(1-Hct)
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filtration fraction
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GFR/RPF
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physiologic dead space
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Vt*[(PaCO2-PeCO2)/PaCO2]
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