Renal Angina Index: Clinical Guide

Clinical guide to Renal Angina Index including calculation, interpretation, assumptions, limitations and references.

Screens critically ill children for risk of severe acute kidney injury by multiplying risk and injury strata.

Overview

Screens critically ill children for risk of severe acute kidney injury by multiplying risk and injury strata.

Clinical Significance

A Renal Angina Index ≥8 is positive and identifies increased risk of severe AKI.

When to Use

  • Use as structured clinical decision support when the required data are available and reliable.

How It Is Calculated

  • The displayed variables are combined using the published equation, decision rule or weighted point system.

Interpretation

  • A Renal Angina Index ≥8 is positive and identifies increased risk of severe AKI.

Worked Example

Enter verified patient data in the displayed units; MedicalC applies the published model.

Limitations

  • Risk and classification tools can be misapplied outside their validated population.
  • Missing, estimated or non-contemporaneous data may materially change the result.

Clinical Pearls

  • Document the input values, units, date and clinical setting with the result.
  • Use serial scores only when the same instrument and measurement method are used consistently.

Common Mistakes

  • Using the tool without confirming entry criteria.
  • Using approximate or incorrectly converted laboratory values.
  • Treating a prognostic score as a standalone treatment decision.

Frequently Asked Questions

What does this tool calculate?

Screens critically ill children for risk of severe acute kidney injury by multiplying risk and injury strata.

Can this result be used alone?

No. Interpret it with the full clinical assessment, applicable entry criteria and current guidance.

References

  1. Basu RK et al. Kidney Int. 2014;85:659-667. — Primary or supporting reference for the implemented model.

Reviewed by: MedicalC Clinical Editorial Team
Last reviewed: July 2026

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