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Table 2

From: Effect of noninvasive ventilation on pulmonary gas exchange in chronic obstructive pulmonary disease

 

HCO3

PaO2/FIO2

P(A-a)O2

PaO2/PAO2

Shunt

Initial

31.5 ± 5.0

238.2 ± 45.1

15.8 ± 12.9

0.770 ± 0.172

0.93 ± 0.75

Final

34.3 ± 6.4

257.7 ± 31.8

78.3 ± 26.3

0.534 ± 0.089

4.50 ± 1.40

P value

0.375*

0.368*

0.000**

0.007**

0.000**

  1. *insignificant, **significant with deterioration.
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Critical Care

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