Table 4

Association between the Pa co 2 , the pH and clinical effects

AuthorsMental claritySemi-coma or coma
Westlake et al, 195526pH >7.3, Pco2 <80 mm HgpH <7.1, Paco2 >120 mm Hg
Sieker et al, 195625pH >7.25, Pco2 <90 mm HgpH <7.14, Paco2 >130 mm Hg