Lab Interpretation

Blood Gas & Acid-Base Analyzer

Enter the blood gas and chemistry once — the primary disorder, compensation, anion gap, delta ratio, A-a gradient, P/F, bicarb deficit, and any hidden second disorder all compute together and inform each other. One screen instead of ten.

Blood Gas

pH7.35–7.45pCO₂mmHg35–45HCO₃⁻ (gas)mEq/L22–26

VBG → ABG estimate: pH +0.03, pCO₂ −6. Estimated values used for all calculations.

Chemistry

Na⁺mEq/L135–145Cl⁻mEq/L98–106CO₂ (chem bicarb)mEq/L22–26

A-a Gradient

pO₂mmHg80–100FiO₂AgeyearsElevationftsea level = 0

↓Enter values to see results below

Informs, shows its work, does not dictate. Every value is a worked equation you can check; clinical judgment and the whole patient override the number. Compensation: Winter’s formula (Albert MS, Dell RB, Winters RW. Ann Intern Med. 1967) with the ±5 refinement (Martinu T, et al. Can Respir J. 2010). Oxygenation severity uses the Berlin ARDS definition (JAMA. 2012); the trials named in the modules (PROSEVA, ACURASYS, EOLIA, BICAR-ICU) are the primary evidence behind each recommendation. VBG→ABG conversion (pH +0.03, pCO₂ −6) is an estimate — A-a gradient and P/F require a true arterial pO₂.