Equations Flashcards
1
Q
Radiation Exposure
A
1/radius ^2 * exposure
2
Q
Shunt Fraction
A
Qs/Qt= (1-SaO2)/ (1-SVO2)
3
Q
Total Oxygen Concentration in Arterial System
A
CaO2= (1.34xHgbxSaO2) + (0.003xPaO2)
4
Q
Coronary Perfusion Pressure
A
CPP = ADP - LEDVP
5
Q
Wall Tension
A
(LEDVP x radius)/ (2x LV Wall thickness)
6
Q
Transvalvular Gradient
A
4 x peak velocity ^2
7
Q
Partial pressure of volatile agent
A
Percentage x atmospheric pressure
8
Q
FeNA
A
UNax pCr/ pNA x UCr (100%)
9
Q
Sodium Deficit
A
Women: .5 x weight (kg) x (140-serum sodium)
Men: .6 x weight (kg) x (140-serum sodium)
10
Q
PH and PaCO2 changes
A
PH decreases by .015 for each degree below 37 and CO2 decreases by 2 for every degree below 37.
