<prompt> Which of the following agents is used to measure Glomerular Filtration Rate GFR?IodohippurateTc99m-DTPATc99m-MAG3Tc99m-DMSA  <response>: Tc99m-Diethylene Triamine Pentothenic Acid DTPA is an agent of choice widely used in measuring GFR. Ref: Renal Disease: Techniques and Protocols By Michael S Goligorsky, Page 87; Paediatric Uroradiology By Richard Fotter, ALbe L Bae, Page 47 