Automated Prediction and Prevention of Contrast Induced Nephropathy After Cardiac Catheterization

Inclusion Criteria: Inpatients age ≥ 21 years seen at the University of Chicago Medical Center with a clinical indication for cardiac catheterization with high likelihood of PCI, or those undergoing planned PCI will be screened for enrollment into our study. Following PCI, these patients must have at least two consecutive daily creatinine measurements starting the day after the PCI, but clinically-indicated according to the inpatient treating physician. Exclusion Criteria: * Patients being discharged the day after the PCI. * Patients who are screened but do not receive PCI. * Patients who do not have at least two consecutive daily creatinine measurements starting the day after the PCI. * Patients undergoing emergency primary percutaneous coronary intervention for ST-segment elevation myocardial infarction. * Patients in cardiogenic shock. * Patients with end-stage renal disease or who are on renal replacement therapy. * Patients requiring planned mechanical circulatory support for the PCI. * Pregnant women (standard PCI screening) * Vulnerable populations such as children, college students, prisoners, non-English speakers, and those with diminished decision-making capacity * Inability or refusal to consent for the study.