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4 calculators
Nephrology practice runs on figures that shift over hours: estimating filtration when creatinine is unstable, dosing drugs safely as kidney function declines, staging acute injury, and confirming that a dialysis session cleared enough solute. Urine chemistries help separate pre-renal states from intrinsic disease, though recent diuretic exposure and volume status can distort the answer. Serial measurements usually carry more information than any single value.
This page groups by clinical area, so the tools below are the ones this setting reaches for — the subject-focused view of the same calculators lives on the categories pages, the full alphabetical list collects everything in one place, and the comparison tool lines up three tools side by side when two of them look interchangeable.
Calculates urine albumin-to-creatinine ratio (ACR) for CKD screening and staging.
NephrologyCalculates creatinine clearance from a 24-hour urine collection using urine creatinine, serum creatinine, and 24-hour urine volume. It is the classic timed-collection estimate of GFR.
NephrologyCalculates single-pool Kt/V (spKt/V) for hemodialysis adequacy using the Daugirdas second-generation formula. KDOQI defines a minimum delivered spKt/V of 1.2 per treatment for patients treated three times weekly, with a target of 1.4.
NephrologyClassifies acute kidney injury (AKI) severity using the KDIGO 2012 criteria based on serum creatinine changes and urine output. The highest applicable stage is assigned when multiple criteria are met.
Nephrology