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AKI Staging (KDIGO)Anion Gap + Delta-Delta CKD Stage (KDIGO)Creatinine Clearance Electrolyte & Free Water FENa FEUrea KFRE — Kidney Failure Risk Kt/V Dialysis Sodium Correction UACR UPCR Urea Reduction Ratio (URR) Calculator Uric Acid & FEUA Urinary Anion Gap Winter's Formula eGFR (CKD-EPI)

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Uric Acid & FEUA

Uric Acid Analysis

Urate Crystallization Risk

Chemical & Physical Inventory

Serum Urate (mg/dL)

Creatinine (mg/dL)

Weight (kg)

Height (cm)

Risk Factors

Urate Logix

Enter serum urate and anthropometrics to execute crystallization risk modeling.

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Differential diagnosis of hyperuricemia: Distinguishing between overproduction vs. renal underexcretion.

Evaluation of patients with recurrent uric acid nephrolithiasis.

Workup for gouty diathesis and monitoring of urate-lowering therapy (ULT).

Assessment of "Fanconi Syndrome" or other tubular disorders (using Fractional Excretion of Uric Acid).

Target Population

Patients with persistent hyperuricemia (Serum Uric Acid > 7.0 mg/dL in men or > 6.0 mg/dL in women) or those with suspected uric acid-related kidney injury.

Related Scores in Practice

In clinical practice, this assessment is frequently evaluated alongside other validated measures. Depending on the patient's presentation and specific diagnostic requirements, you may also need to utilize the FENa, FEUrea or the AKI Staging (KDIGO) to formulate a comprehensive care plan.

Last Comprehensive Review: 2026

Related Nephrology Tools

Electrolyte & Free Water

Winter's Formula

Anion Gap + Delta-Delta

Creatinine Clearance

KFRE — Kidney Failure Risk

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