Oxygen Content of Arterial Blood Formula


Equation for calculate oxygen content of arterial blood is,

CaO2 = ( Hgb x 13.4 x O2Sat / 100 ) + ( PaO2 x 0.031 )

Where,

O2Sat - Oxygen saturation

PaO2 - Partial Pressure of Oxygen

Hgb - Hemoglobin

The Constant 1.34 - amount of oxygen (ml at 1 atmosphere) bound per gram of hemoglobin

The constant 0.031 represents the amount of oxygen dissolved in plasma.