Contrast-induced nephropathy.

Contrast-induced nephropathy is defined as a serum creatinine level that increases by at least 25% or is 44.2 μmol/L greater than baseline within three days of receiving contrast medium intravascularly in the ab sence of another cause. Contrastinduced nephropathy is usually selflimiting; at worst, it can make the patient permanently dependent on hemodialysis or can result in death. Main risk factors are renal dysfunction and diabetes (particularly in the presence of chronic renal disease)