What can falsely elevate UPC?

Hematuria, inflammation, infection, and strenuous exercise can transiently elevate UPC. Always interpret alongside urine sediment and clinical context.

How often should UPC be rechecked?

For stable patients, recheck every 2–4 weeks after starting therapy. In acute renal cases, monitor more frequently according to clinical course.

Does UPC replace urine sediment examination?

No. UPC quantifies proteinuria but does not identify its source. Sediment examination is essential to rule out active sediment, hemorrhage, or infection.

Clinical decision support

Urine protein:creatinine ratio calculator

Calculate UPC ratio for dogs and cats from urine protein and creatinine concentrations. Review species-specific interpretation, IRIS staging relevance, and suggested next clinical checks. Educational decision-support tool only.

Clinical decision support

Urine protein:creatinine ratio calculator

Enter urine protein and creatinine in the same units to calculate the UPC ratio.

Reference ranges & IRIS thresholds

Dog normal threshold Dog borderline threshold

Cat normal threshold Cat borderline threshold

IRIS dog proteinuric threshold IRIS cat proteinuric threshold

Defaults are commonly cited references. Adjust to match your laboratory or institutional protocol.

UPC ratio

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Enter urine values

Enter urine protein and creatinine to calculate the UPC ratio.

Interpretation —

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IRIS relevance —

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Species reference —

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Clinical next steps

Repeat sample using first-morning urine collected by cystocentesis when possible.
Examine urine sediment and submit for culture if active sediment or infection is suspected.
Measure systemic blood pressure; hypertension and proteinuria are closely linked.
Correlate with SDMA and creatinine for renal staging and trend monitoring.
Consider urine protein electrophoresis if proteinuria persists and source is unclear.

Safety checks

This tool supports calculation and education only.
It does not diagnose, prescribe, or replace current clinical references.
Verify patient-specific decisions with current formularies, hospital protocols, and veterinarian judgment.
Ensure both values use the same unit.
Reference ranges and IRIS thresholds vary by source; verify against your laboratory guidelines.

Basis and limits

Calculation basis: UPC = urine protein / urine creatinine (same units).
Dog interpretation: <0.2 normal, 0.2–0.5 borderline, >0.5 proteinuric. Adjustable in the Assumptions panel.
Cat interpretation: <0.2 normal, 0.2–0.4 borderline, >0.4 proteinuric. Adjustable in the Assumptions panel.
Scope: this tool supports arithmetic and basic categorization. It does not replace full urinalysis, culture, or renal workup.

Formula audit trail

Calculation steps will appear here for verification.

Urine protein:creatinine ratio calculator

Urine protein:creatinine ratio calculator

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