Equations Flashcards
Resting Energy Requirement
70*BW(Kgs)^0.75
Rehydration Volume
BW(kgs) x %dehydation = Dehdration in L
K Max
0.5mEq/kg/hr
Osmolality (mOsm/kg)
2(Na) + (glu/18) + (BUN/2.8)
Effective Osmolality
2(Na) + (glu/18)
MAP
[(Systolic - diastolic) / 3] + Diastolic
A-a gradient
(FiO2 (Barometric Pressure - 47) - (PaCO2/0.8)) - PaO2
Sodium Bicarbonate Supplementation
Base Excess x BW(kgs) x 0.3
Corrected Cl
Measured Cl x (Normal mean or reference Na/ Measured Na)
Total Body Water
BW (kgs) x 0.60
Corrected Na
1.6[(Measured glucose - normal glucose) / 100] + Measured Na
Tidal Volume
10-15mL/kg
Cerebral Perfusion Pressure
MAP-ICP
Coronary Perfusion Pressure
Diastolic BP - Pulmonary Capillary Wedge Pressure
Sodium Deficit
(Target Na - Patient Na)(0.6 x BWkgs)