Glomerular filtration rate in transplantation patients: estimation of renal function using Tc-99m DTPA.

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Abstract
The clinical assessment of a transplanted kidney is often difficult, especially in the immediate postoperative period. The biochemical parameters used to monitor renal function change slowly and can take several days to reflect the actual renal status. A technique for determining the glomerular filtration rate 99mTc DTPA [diethylenetriaminepentaacetic acid] renal scan was modified and it was found to correlate with the acutal GRF throughout the postoperative course. In addition, a method for changing dose calibrator measurements into administered counts is described. This technique for determining the GRF provides a quick and accurate assessment of renal function and is useful to guide therapeutic decisions.