Radiology General a0ae0c99 Which of the following agents is used to measure glomerular filtration rate (GFR) – A Iodohippurate B Tc99m – DTPA C Tc99m – MAG3 D Tc99m – DMSA High-Yield Explanation In dynamic renal scintigraphy :- GFR → Tc - 99m - DTPA Effective renal plasma flow → Tc-99m - MAG3, I - 123 - OIH.