Table 4

A post-operative ABG analysis with tracheostomy

TestVariableReference values
pH7.477.35–7.45
PCO2 kPa5.54.7–6.0
PO2 kPa1010.0–13.3
Base excess mmol·L−15.1−2.5–2.5
Bicarbonate mmol·L−129.420–28
Oxygen saturation %95.794–99