The contrast media play an important role at the modern medicine, they are used bothin assessment procedures and in surgical interventions, it is also linked to the potentialcomplications developed, such as contrast-induced acute kidney injury (CI-AKI) orinduced by contrast.The CI-AKI is defined as kidney failure occurred in the 48 hours subsequent to thecontrast-induced administration, and remains important to highlight that thesedefinitions, described in the past few years, implied in the first case a cluster, and inthe second case, a causal connection.The exact way this damage spawn has yet to be clarified, but it is known that there are3 principal mechanisms that contribute to kidney failure, which are cytotoxic directdamage on tubular cells, medium disturbances by oxygen radicals and hypoxia due tovasoconstriction, together with the risks inherent to the patients.Currently, there are no standardized criteria for its diagnosis, previously it was usedchanges in the basal creatinine levels. Formerly, and for some time now it is proposed asa tool the criteria defined by Acute Kidney Injury Network (AKIN). Within the preventionstrategies it included the type of selection by contrast-induced, volume expansion,baking soda usage, N-acetylcysteine, statins and waiver usage on nephrotoxic.