CathLabHub

CathLabHub complications toolkitcathlabhub.com/toolkit/contrast-kidney-injuryIn review, October 24, 2026

Recognize

The signs on the monitor, the image and the patient.

  • LabCreatinine up 0.3 mg/dL within 48 hours or 1.5 times baseline within 7 days (KDIGO AKI) 1.
  • LabOlder contrast studies used a rise over 25 percent or over 0.5 mg/dL 2.
  • LabCreatinine starts rising at 12 to 24 hours, peaks at 48 to 96 hours, and usually returns to baseline by days 3 to 5, sometimes 7 to 10 2.
  • PatientUsually silent; oliguria, fluid overload or hyperkalemia when severe.
  • LabHighest risk: eGFR under 30, heart failure, shock, diabetes, anemia, age over 75, an IABP and large contrast volumes 32.

Act now

In the order the operator does them. The first three come first, whatever else is happening.

  1. Check creatinine at 48 to 72 hours after the case in high risk patients 23.
  2. Volume: hydrate with normal saline unless the patient is overloaded 3.
  3. Stop nephrotoxic drugs such as NSAIDs where possible 3.
  4. Avoid another contrast load until the creatinine falls, unless the benefit is clear.
  5. No specific treatment once established; dialysis for the usual indications 3.
  6. Nephrology input for a large rise, oliguria, hyperkalemia or overload.

Equipment

From the complications cart. Linked items open in the equipment directory.

Drugs

Adult doses as the cited source gives them. Check your formulary and the label.

  • Normal salineIntravenous hydration before and after; no other solution has proven better 3.
  • High dose statinBefore the procedure, as listed by Brilakis 3.
  • Sources differ: bicarbonate and N-acetylcysteine are not better than saline in Brilakis; Kern calls the data weak 32.

Who to call

The escalation ladder, first call first.

  1. Nephrology: for oliguria, hyperkalemia, overload or a large rise.
  2. Pharmacy: to adjust renally cleared drugs.

The bailout step by step

A contrast plan for a patient with advanced kidney disease 35

  1. Estimate risk (Mehran score or NCDR model) and the eGFR 32.
  2. Hydrate with normal saline before, during and after, unless contraindicated 35.
  3. Set a contrast limit: below the creatinine clearance in mL in advanced CKD; a contrast to clearance ratio over 2 predicted injury 3.
  4. Use 5 Fr catheters without side holes, small injections of 2 to 3 mL, diluted contrast and prior films 3.
  5. Use IVUS, physiology and wire markers instead of injections 3.
  6. Stage multivessel PCI.
  7. Creatinine at 48 to 72 hours 2.

Prevent

  • Adequate hydration and the least contrast are the two measures with support 53.
  • Hold NSAIDs; consider holding other nephrotoxins 3.
  • In the ACR and NKF consensus, the risk with intravenous contrast is concentrated in patients with eGFR under 30 6.

After care and documentation

  • Record the contrast volume, the ratio to creatinine clearance and the creatinine trend.
  • Arrange the creatinine check if the patient goes home the same day.

Practice

No emergency simulator case for this; every simulator in the app counts contrast at the top of the screen. Browse the case library.

References

  1. Kidney Disease: Improving Global Outcomes (KDIGO) Acute Kidney Injury Work Group. KDIGO clinical practice guideline for acute kidney injury. Kidney Int Suppl 2012;2:1-138.
  2. Berg R, Lim MJ. Complications of percutaneous coronary interventions. In: Kern MJ, ed. The Interventional Cardiac Catheterization Handbook. 3rd ed. Saunders, Elsevier; 2013. Chapter 4.
  3. Brilakis ES. Manual of Percutaneous Coronary Interventions. Elsevier; 2021. Chapter 28, Other complications: hypotension, radiation skin injury, contrast induced acute kidney injury.
  4. Brilakis ES. Manual of Percutaneous Coronary Interventions: A Step-by-Step Approach. Academic Press, Elsevier; 2021. Chapter 3, Medications.
  5. Lawton JS, Tamis-Holland JE, Bangalore S, et al. 2021 ACC/AHA/SCAI guideline for coronary artery revascularization. J Am Coll Cardiol 2022;79:e21-e129.
  6. Davenport MS, Perazella MA, Yee J, et al. Use of intravenous iodinated contrast media in patients with kidney disease: consensus statements from the American College of Radiology and the National Kidney Foundation. Radiology 2020;294:660-668.

Educational reference for cath lab teams, not medical advice and not a standard of care. Your local policy, the device instructions for use and current guidelines govern. Verify every dose before use. Printed from cathlabhub.com/toolkit/contrast-kidney-injury. First version, in clinical review: an interventional cardiologist is checking every card before it is final. Every number cites its source on the card.