Metabolic Acidosis Compensation: Winters Formula
Arterial oxygen content =(Hgb x 1.36 x SaO2) + (0.0031 x PaO2)
where,
SaO2 = % of hemoglobin saturated with oxygen
(Normal range: 93-100%)
Hgb = hemoglobin
Normal range(Adults): Male: 13-18 g/dl Female: 12-16 g/dl
PaO2= Arterial oxygen partial pressure
(Normal range: 80-100)
CaO2: Directly reflects the total number of oxygen molecules in arterial blood (both bound and unbound to hemoglobin)
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Formula 
