All of the following are used to measure ECF volume, except

All of the following are used to measure ECF volume, except
a) Sucrose
b) Sodium chloride
c) Inulin
d) Heavy water

1.c
2.d
3.ab
4.bd

Explanation:

Indicators used for fluid volumes

  1.   Total body water (TBW)- Deuterium Oxide D2O, Tritium oxide, Aminopyrine, Antipyrine
    
  2.   ECF- Inulin, Sucrose, Mannitol, Sodium thiosulphate, Na22
    
  3.   Plasma volume- Evan’s blue, radioactive iodine labelled serum albumin (I125)
    
  4.   Blood cell volume- Cr51 labelled RBC