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Table 9.1
Normal Arterial Blood Gas Values
Arterial Blood
Mixed Venous Blood
pH
7.35–7.45
7.33–7.43
PO
2
80–100 mm Hg
35–49 mm Hg
O
2
Sat
95% or greater
70%–75%
PCO
2
35–45 mm Hg
41–51 mm Hg
HCO
3
22–26 mEq/L
24–28 mEq/L
Base excess
−
2 to +2
0 to +4