an iodine-containing compound that has been used as a radiopaque medium in pyelography. When labeled with radioactive iodine, it may be used as a diagnostic aid in determination of renal function and in renal imaging.
i·o·do·hip·pu·rate so·di·um(ī-ō'dō-hip'ū-rāt sō'dē-ŭm),
A radiopaque compound formerly used intravenously, orally, or for retrograde urography. When tagged with iodine-131, it is used to measure effective renal plasma flow and to image the kidneys for radioisotopic renography.