Blood Gas Calculator — Dogs & Cats

Acid–base interpreter with species-specific ranges & compensation checks
ASK A VET™

Enter values

pH and pCO₂ are required. Leave HCO₃⁻ blank to calculate it. Add electrolytes for anion gap.

mmHg
mmol/L
Optional — electrolytes & extras
mmol/L
mmol/L
mmol/L
mmol/L
g/dL
mmHg
Reference ranges & formulas used

Interpretation

Structured, stepwise read-out. Always correlate with the patient in front of you.

Enter a pH and pCO₂ (plus HCO₃⁻ if you have it) and press Interpret.

Clinical tool — not a diagnosis. This calculator supports interpretation of arterial and venous blood gases in dogs and cats using published reference ranges and DiBartola compensation formulas. Compensation formulas are best validated for arterial samples in dogs; feline and venous compensation data are limited, so those results are shown as guides only. Reference ranges vary by analyser and population — use your own lab's intervals where they differ. Blood gas numbers never replace clinical assessment, history, and the trend over time. Final decisions rest with the attending veterinarian.

Built for real clinical use by ASK A VET™ — the animal health platform. Talk. Track. Trust.