Calculate the ECF volume and its quantitative relation to Total Body Water given:
- Amount of Thiosulphate injected=150mg
- Plasma conc. of Thiosulphate at the end of 1 hour = 1mg/100ml (0.01 mg/ml)
- Amount of Thiosulphate excreted during 1 hour = 10 mg
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ECF volume is 14 L.
ECF volume is 1/3rd of Total Body Water.