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29 Cards in this Set

  • Front
  • Back
Sensitivity
Sensitivity =a /(a + c)
Specificity
Specificity =d /(b + d)
Positive predictive value
PPV =a /(a + b)
Negative predictive value
NPV =d /(c + d)
Relative risk
RR =[a/(a + b)] / [c/(c + d)]
Attributable risk
AR = [a /(a+b)] - [c /(c+d)]
Hardy-Weinberg equilibrium
p2 + 2pq + q2 = 1

p + q = 1
Henderson-Hasselbalch equation
pH = pKa + log [(HCO3-) /(0.03PCO2)]
Volume of distribution
Vd = (amount of drug in the body) / (plasma drug concentration)
Clearance
CL = (rate of elimination of drug) /
(plasma drug concentration)
Half-life
t1⁄2 = (0.7 × Vd) / (CL)
Loading dose
LD = ([ ]p ×Vd) / F
Maintenance dose
MD = ([ ]p ×CL) / F
Cardiac output
CO = (rate of O2 consumption) / (arterial O2 content − venous O2 content)
Cardiac output
CO = stroke volume × heart rate
Mean arterial pressure
MAP = cardiac output × total peripheral resistance
Mean arterial pressure
MAP = 1⁄3 systolic + 2⁄3 diastolic
Stroke volume
SV = end diastolic volume − end systolic volume
Ejection fraction
EF = (stroke volume / end diastolic volume) x 100
Resistance
R = driving pressure / flow

R = [8η (viscosity) × length] / (π r4)
Net filtration pressure
Pnet = (Pc − Pi) − (πc − πi)
Glomerular filtration rate
GFR = (U of inulin x V) / P of inulin

C of inulin = (U of inulin x V) / P of inulin
Effective renal plasma flow
ERPF = (U of PAH x V) / P of PAH

C of PAH = (U of PAH x V) / P of PAH
Renal blood flow
RBF = RPF / (1 − Hct)
Filtration fraction
FF = GFR / RPF
Free water clearance
CH2O = V − Cosm
Physiologic dead space
VD = VT x [(PaCO2 − PeCO2) / PaCO2]
O2 consumption
O2 con = CO (arterial O2 - venous O2)
Collapsing pressure
CP = 2 (Tension) / Radius