Radiology Which of the following agents is used to measure glomerular filtration rate (GFR) – A Iodohippurate B Tc99m – DTPA C Tc99m – MAG3 D Tc99m – DMSA 💡 Explanation Which of the following agents is used to measure glomerular filtration rate (GFR) – ✓ Correct Answer: B. Tc99m – DTPA