Nucleolab

 

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Plasma volume

 

The plasma volume module calculates plasma 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dilute standard, the background radioactivity if necessary, and the radioactive concentration of the 3 plasma specimens withdrawn at different times after injection of the 125I-human serum albumin. The module also calculates blood volume and red cell volume from plasma 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 obtained results for plasma volume, red cell volume, and blood volume with the reference values expected according to the age, height, and weight of the patient.

 

 

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