Equations Flashcards
1
Q
Nitrogen Balance
A
Protein intake / 6.25 - (Urin Nitrogen + 4)
2
Q
Cerebral perfusion pressure (CPP)
A
CPP = MAP - ICP
goal CPP: 60-70
goal ICP <20
3
Q
Oxygen delivery (DO2)
A
CO x [(Hg + SaO2 + 1.34) + (PaO2 x 0.003)]
4
Q
Mean arterial pressure (MAP)
A
CO x SVR
5
Q
Cardiac index (CI)
A
Cardiac output (CO) / Body surface area (BSA)
6
Q
Ejection fraction (EF)
A
Stroke volume (SV) / LVEDV
7
Q
Minute ventilation (MV)
A
Tidal volume (TV) x RR
8
Q
Fractional excretion of sodium (FeNa)
A
(Ur na/Ur cr) / (plasma na/plasma cr)
9
Q
hepatic venous pressure gradient (portal pressure)
A
IVC pressure - portal vein pressure
normal: <5mmHg