What is contrast-induced nephropathy?

Contrast-induced nephropathy is kidney damage caused by use of radioactive dye during medical procedures. This dye is called “contrast dye” and is used during X-ray procedures to help cardiologists gather images of the blood vessels. An angiogram is one such imaging technique that uses contrast dye.

If you have existing kidney problems and are going to be given contrast dye, be sure that your physician is aware of this medical history. Also, some patients are allergic to contrast dye, so you should notify your physician if you have a known allergy to the dye or are allergic to iodine or shellfish.