AKI Staging — KDIGO Criteria for Acute Kidney Injury

Stage acute kidney injury (AKI) using KDIGO criteria based on serum creatinine rise (1.5–1.9× baseline = Stage 1, 2.0–2.9× = Stage 2, ≥3× = Stage 3) and urine output criteria.

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.
Advertisement

How It Works

Stage acute kidney injury (AKI) using KDIGO criteria based on serum creatinine rise (1.5–1.9× baseline = Stage 1, 2.0–2.9× = Stage 2, ≥3× = Stage 3) and urine output criteria

Each component has a specific meaning:

  • KDIGO criteria based on serum creatinine rise (1 — The kdigo criteria based on serum creatinine rise (1 recorded for the scenario being assessed.

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

How to Use

Enter the KDIGO criteria based on serum creatinine rise (1 for the scenario you are assessing. Stage acute kidney injury (AKI) using KDIGO criteria based on serum creatinine rise (1.5–1.9× baseline = Stage 1, 2.0–2.9× = Stage 2, ≥3× = Stage 3) and urine output criteria. Use the aki kdigo staging result to inform your calculation.

Related Calculators

SOFA Score

Medical

Frequently Asked Questions