Table 1 Pulmonary gas exchange values before and after salbutamol administration

PH

7.45 (7.39 to 7.51)

7.43 (7.37 to 7.46)

0.080

PaO₂/F_IO₂ ratio (mmHg)

133 (96 to 211)

140 (102 to 154)

0.600

Partial pressure of arterial carbon dioxide (PaCO₂) (mmHg)

41 (37 to 48)

43 (39 to 50)

0.072

Bicarbonate (HCO₃^-) (mmol/l)

26.5 (23.5 to 32.7)

26 (24 to 32.3)

0.680

Base excess (BE) (mmol/l)

2.4 (-1.4 to 9.1)

2.2 (-0.6 to 8.7)

0.916

Arterial oximetry (SaO₂) (%)

97 (96 to 98)

97 (96 to 98)

1.000