Calculate H⁺ concentration and pH from PaCO₂ and HCO₃⁻ (Henderson-Hasselbalch equation)
Medical Calculator – SonDoctor.com × Calculate H⁺ concentration and pH from PaCO₂ and HCO₃⁻ (Henderson-Hasselbalch equation) Henderson-Hasselbalch equation: pH = 6.1 + log([HCO₃⁻] / (0.03 × PaCO₂)) [H⁺](mol/L) = 10-pH PaCO₂ (mmHg) : HCO₃⁻ (mmol/L) : ※ pH 7.40 = approximately 40 nmol/L