Lupus Nephritis Activity Index and Response Assessment

Assesses lupus nephritis renal activity using UACR, urine red cell casts, eGFR trend, anti-dsDNA, complement C3/C4, and classifies renal response (complete/partial remission) per ACR 2024 criteria.

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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

Assesses lupus nephritis renal activity using UACR, urine red cell casts, eGFR trend, anti-dsDNA, complement C3/C4, and classifies renal response (complete/partial remission) per ACR 2024 criteria

Each component has a specific meaning:

  • UACR — The uacr recorded for the scenario being assessed.
  • Urine red cell casts — The urine red cell casts recorded for the scenario being assessed.
  • EGFR trend — The egfr trend recorded for the scenario being assessed.
  • Anti-dsDNA — The anti-dsdna recorded for the scenario being assessed.
  • Complement C3/C4 — The complement c3/c4 recorded for the scenario being assessed.
  • Classifies renal response per ACR 2024 criteria — The classifies renal response per acr 2024 criteria recorded for the scenario being assessed.

Note: Interpret the lupus nephritis score result against the thresholds and context described above.

How to Use

Enter the UACR, urine red cell casts, eGFR trend, anti-dsDNA, complement C3/C4, classifies renal response per ACR 2024 criteria for the scenario you are assessing. Assesses lupus nephritis renal activity using UACR, urine red cell casts, eGFR trend, anti-dsDNA, complement C3/C4, and classifies renal response (complete/partial remission) per ACR 2024 criteria. Use the lupus nephritis score result to inform your calculation.

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