Nomenclature and definitions of kidney injury related to iodinated contrast media
| Contrast-induced nephropathy—Traditional term for worsening kidney function within 48 hours of iodinated contrast media. This term has largely been replaced by contrast-induced acute kidney injury. |
| Contrast-associated acute kidney injury—Any acute kidney injury occurring within 48 hours of iodinated contrast media. The term implies correlative diagnosis and does not suggest a causal relationship between the acute kidney injury and the iodinated contrast media. |
| Postcontrast acute kidney injury—Synonymous with contrast-associated acute kidney injury. This term appears in the radiology literature. Similar to contrast-associated acute kidney injury, it implies correlative diagnosis without suggesting a causal relationship between the acute kidney injury and the iodinated contrast media |
| Contrast-induced acute kidney injury—Replaced contrast-induced nephropathy as the accepted terminology when acute kidney injury is causally linked to iodinated contrast media. It is a subset of contrast-associated acute kidney injury. |