Medical Calculator – SonDoctor.com
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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
※ pH 7.40 = approximately 40 nmol/L
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