First Things First (assess and treat for the following)

• Prevention is better than cure: if GFR < 50 mL/min/1.73m3, especially if additional risk factors are present, consider alternative imaging modality.
• If radiocontrast is needed, use a low-osmolar agent and minimize the dose.
• Defined as increase in serum creatinine of 25% from baseline within 1-4 days after contrast administration