The Normal value of P02 in healthy man is :

C i.e. 80 mm HgFeatureAerial blood--Mixed Venous blood (at rest)FeatureAerial blood--Mixed Venous blood (at rest) 02 tension/P0295 +- 5 mmHg40 +- 2 mm Hg02 tension/P0295 +- 5 mmHg40 +- 2 mm Hg 02 Content19 m1/100 ml14 ml /100 ml02 Content19 m1/100 ml14 ml /100 ml % Saturation of Hb95% +- 2%75%% Saturation of Hb95% +- 2%75% 02Content = dissolved 02 in the plasma + 02 Contained in the Hb * Aerial blood pH --> 7.4 +- 0.02* Dead space Volume --> 2 ml/kg body wt