Fluids and Fluid Compartments Homework

PE-674, Winter '99-'00, Dr. C. S. Tritt

Due 1/6

Make the following assumptions for normal conditions in the following problems.

V_blood (liters) = 4.17´10^-7H³ + 0.045W - 0.03 (for males)

V_blood (liters) = 4.14´10^-7H³ + 0.033W - 0.03 (for females)

Hematocrit: 45% for males and 42% for females.

V_ECF = 3.0×V_blood

V_ICF = 5.0×V_blood

Osmolar concentration (all compartments): 290 mOsm/l.

where H is height in centimeters and W is weight in kilograms.

1. Calculate the normal V_blood, V_plasma, V_ECF and V_ICF for a 183 cm tall, 72.7 kg woman.

2. Calculate V_blood, V_plasma, V_ECF and V_ICF for the woman in problem 1 shortly after the administration of 1.00 liter of a solution containing 400 mOsm/l NaCl, 100 mOsm/l KCl and 200 mOsm/l colloid.