Calculate the ECF volume and Total Body Water
- Amount of Sucrose injected = 150 mg
- Plasma Sucrose levels after being mixed = 0.01 mg/ml
- Amount of Sucrose excreted after being mixed = 10 mg
- Intracellular fluid volume = 28 L
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TBW is normal.
Sucrose is a type of marker substance, using which ECF
volume can be measured. Hence it is referred as sucrose space.
Sucrose diffuses more evenly throughout all the sub-compartments of ECF.