Table 2
Pa
o
2
on air in COPD patients with acute exacerbations and respiratory failure
Mean Pa
o
2
Range
Author
Patients (n)
(mm Hg)
(mm Hg)
King
et al
, 1973
9
40
40.4
24–68
Warrell
et al
, 1970
10
7
29.8
25–28
Rudolf
et al
, 1977
11
3
33.6
31–39