Cystatin and Early AKI Detection Contrast Induced Acute Kidney Injury

Inclusion Criteria:

• Subjects ages 18 years and above

• Inpatients with CKD (Figure 1)

• Order for CT imaging study or coronary angiography with isohexol Omnipaque) contrastmedia.

• Pre and post contrast available

• All races and ethnicity of patients are eligible. We expect to analyze approximatelyequal number of men and women in this study.

Exclusion Criteria:

• Preexisting dialysis

• Patients under the age of 18 years

• Pregnancy

• Incarcerated individuals

• Patients with impaired cognition and unable to follow consent procedures

• Recent exposure to CM (within 2 days before/after procedure)

• Cardiac shock

• Medications that affect biomarkers, including corticosteroids,lfamethoxazoletrimethoprim