Nucleolab

 

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Red-cell volume

 

The red cell volume module calculates the red cell volume from the activity of the dose syringe before and after injection, the activity of the standard syringe before and after its contents are poured into the dilution flask, the volume of the dilution flask, the venous hematocrit, the radioactive concentration of the dilute standard, the background radioactivity if necessary, and the radioactive concentration of the blood specimens withdrawn 30 min after injection of 51Cr-chromate. The module also calculates blood volume and plasma volume from red cell volume, venous hematocrit, and f (Hb/Hv = 0.9). Then, it calculates the maximum possible errors when f varies between 0.76 and 1.15. Finally, the module compares the results for red cell volume, plasma volume, and blood volume with the reference values expected according to the age, height, and weight of the patient.

 

 

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