RIFLE Criteria for Acute Kidney Injury

Classify AKI using RIFLE criteria: Risk (Cr x1.5 or GFR -25%), Injury (Cr x2 or GFR -50%), Failure (Cr x3 or GFR -75%), Loss (complete loss > 4 weeks), ESKD (> 3 months).

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Classify AKI using RIFLE criteria: Risk (Cr x1.5 or GFR -25%), Injury (Cr x2 or GFR -50%), Failure (Cr x3 or GFR -75%), Loss (complete loss > 4 weeks), ESKD (> 3 months)

Each component has a specific meaning:

  • RIFLE criteria: Risk (Cr x1 — The rifle criteria: risk (cr x1 recorded for the scenario being assessed.

Note: Interpret the rifle aki result against the thresholds and context described above.

How to Use

Enter the RIFLE criteria: Risk (Cr x1 for the scenario you are assessing. Classify AKI using RIFLE criteria: Risk (Cr x1.5 or GFR -25%), Injury (Cr x2 or GFR -50%), Failure (Cr x3 or GFR -75%), Loss (complete loss > 4 weeks), ESKD (> 3 months). Use the rifle aki result to inform your calculation.

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Frequently Asked Questions