Fluid management Flashcards
EBV for premature infant
95 ml/kg
EBV for full term infant
85 ml/kg
EBV for infants to 12 MO
80 ml/kg
EBV for Adult/child (male)
75ml/kg
EBV for adult/ child (female)
65 ml/kg
Morbid obese EBV
60 ml/kg (BMI > 40)
ABL formula
Allowable blood loss
ABL = ((HCT (initial) - HCT (final) x EBV) / hct (initial)
HCT allowable (highly variable) = 30%
Crystalloid replacement equivalent
3ml/1ml EBL
Colloids replacement equivalent
1ml/1ml EBL
Whole blood replacement equivalent
1ml/1ml EBL
PRBC replacement equivalent
0.5 ml/1ml EBL
PRBC Hct
70%
Fully soaked 4x4 EBL
10 ml of EBL
fully soaked “Lap” EBL
100-150 ml
421 rule
4 ml/kg for first 10 kg
2ml/kg for next 10 kg
1 ml;kg/hr for every kg > 20 kg
NPO deficit
Maintenance rate x # hrs NPO
Evaporative loss minimal
0.2 ml/kg/hr
Evaporative loss moderate
2-4 ml/kg/hr
Evaporative loss severe
4-8 ml/kg/hr
What is radiation heat loss
Radiation: heat loss to the environment, approx. 40% of heat loss in pt
What is convection heat transfer?
Convection: loss of heat to air immediately surrounding the body, approx. 30%
What is evaporation heat transfer?
Evaporation: latent heat of vaporization of water from open body cavities and respiratory tract, approx. 8-10%
(sweating)
What is conduction heat transfer?
Conduction: heat loss due to direct contact of body tissues or fluids with a colder material, negligible
