Fig 6.
Arterial fractional oxyhemoglobin saturation (FaO2Hb) as a function of dyshemoglobinemia (COHb + MetHb). The regression equation was y = 100.31-2.72x. The y-intercept (p<0.0001) and the slope (p<0.0001) were statistically significant. There was a negative correlation between the independent and dependent variables (R2 = 0.55).