Clinical decision support
Urine output calculator
Calculate urine output in mL/kg/hr for dogs and cats. Assess oliguria, normal output, and polyuria with clinical interpretation and monitoring guidance. Educational decision-support tool only.
Safety checks
- This tool supports calculation and education only.
- It does not diagnose, prescribe, or replace clinical judgment.
- Measurement accuracy depends on proper collection technique.
- Single measurements are less informative than trends over time.
- Always correlate with physical exam, lab work, and imaging.
Basis and limits
- Formula: Urine output (mL/kg/hr) = total urine volume (mL) / (body weight (kg) × collection time (hr)).
- Oliguria: < 0.5 mL/kg/hr suggests inadequate renal perfusion or intrinsic renal disease.
- Normal: 1–2 mL/kg/hr is typical for dogs and cats.
- Polyuria: > 2 mL/kg/hr may indicate solute diuresis, diabetes insipidus, or other causes.
- Scope: this tool provides arithmetic support. It does not replace full diagnostic workup.
Formula audit trail
Calculation steps will appear here for verification.