Total Red Cell Volume

From Anvita Health Wiki

Indications

• evaluation of polycythemia Procredure:
• [51]Cr labeled erythrocytes are used to measure red cell mass
• [125]I labed albumin is used to measure plasma volume; hematocrit is measured with a Coulter counter; total red cell volume is calculated (approximation)
  
• hct = red cell volume/ ( plasma volume + red cell volume)
• hct x ( plasma volume + red cell volume) = red cell volume
• red cell volume x (1 - hct) = hct x plasma volume
• red cell volume = ( hct x plasma volume) / (1 - hct)

More General Terms

• clinical hematology test

References

1. Fairbanks VF et al Measurement of Blood Volume and Red Cell Mass: Re-examination of 51Cr and 125I Methods Blood Cells, Molecules, and Diseases (1996) 22(15): 169-186 [1]

total red cell volume