Nucleolab

 

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Glomerular filtration rate

 

The glomerular filtration rate (1 specimen) screen calculates the GFR (and its normalized value) of 51Cr-EDTA by the method of Ham and Piepsz. The data needed are the activity of the dose syringe before and after injection, the activity of the standard syringe before and after the contents are poured into the dilution flask, the time between injection of the dose and withdrawal of the blood specimen, the volume of the dilution flask, the radioactive concentration of the dilute standard, the radioactive concentration of the plasma specimen at about 2 h after injection of 51Cr-EDTA, and the background radioactivity if necessary.

 

 

The glomerular filtration rate (3 specimens) screen calculates the GFR (and its normalized value) of 51Cr-EDTA by the method of Mistry. The user has to enter 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 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dilute standard, the background radioactivity if necessary, and the radioactive concentration of the 3 plasma specimens withdrawn at different times after injection of the 51Cr-EDTA.

 

 

The glomerular filtration rate (6 specimens) screen calculates the GFR (and its normalized value) of 51Cr- EDTA by a two-compartment model. The data to be input are 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 radioactive concentration of the dilute standard, the background radioactivity if necessary, and the radioactive concentration of the 6 plasma specimens withdrawn at different times after injection of the 51Cr-EDTA.

 

 

To calculate the normalized values of every renal test, one needs to enter the weight, height, and age of the patient in the corresponding screens.

 

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