Ultra-Low Contrast Angiography in AKI

Inclusion Criteria:

* Hospitalized patients who have AKI at admission or who develop AKI during admission and require invasive coronary angiography will be included in the trial.

Exclusion Criteria:

* Stabilized renal function manifested by unchanged or downtrending serum creatinine during a 24-hour period prior to enrollment.
* Contraindication for invasive coronary angiography other than AKI.
* Percutaneous coronary intervention is indicated and cannot be postponed by 7 days.
* Need for renal replacement therapy before coronary angiography or planned renal replacement therapy after coronary angiography (if premeditated before coronary angiography).
* Administration of intravascular contrast media during 7 days prior to the coronary angiography or within 6 days after coronary angiography.
* Pregnant patients, prisoners, cognitively impaired subjects, age below 18 years, unable or unwilling to provide informed consent.