Use of Urinary Cell-Cycle Arrest Biomarkers in Contrast-Associated Nephropathy After Coronary Angiography

"Urinary determination of TIMP2-IGFBP7 in the an urine sample obtained within 12 hours prior to contrast administration. A single determination will be made, which will be sent to the laboratory. The doctor who treats the patient will not know the result of the test, and the treatment will not be influenced by the result.~According to the manufacturer, 10 ml of fresh urine should be collected in a sterile container and the laboratory should centrifuge them within the time of collection.~The result is reported as a single value calculated as the concentration of TIMP-2 (ng / mL) multiplied by the concentration of IGFBP7 (ng / mL) divided by 1000. The result is reported without units."