Which of the following is the best for measuring total body water:: (A) Evan's blue, (B) I131, (C) Tritium oxide, (D) P 32
Answer is C. Ans. C. Tritium oxideRadioactive water (TRITIUM) or heavy water (deuterium) can be used to measure total body water. Tritium is also used as a tracer in chemical and biochemical research.