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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Anesthesiology. 2015 Jul;123(1):126–135. doi: 10.1097/ALN.0000000000000689

Table 2.

Baseline Blood Gas and Gas Exchange Data for the as Treated Population

Cell Salvage Washed Allogeneic Unwashed Allogeneic P value
n 36 (8.5%) 18 (4.3%) 23 (5.4%)
pH 7.42 ± 0.04 7.44 ± 0.05 7.44 ± 0.04 0.097
PaCO2 (mm Hg) 39.3 ± 3.3 38.2 ± 4.3 39.5 ± 3.0 0.46
PaO2 (mm Hg) 364 ± 84 375 ± 60 364 ± 83 0.88
HCO3− (mmol/L) 25.7 ± 2.0 26.1 ± 2.0 27.1 ± 2.3 0.047
Base Excess (mmol/L) 1.6 ± 2.3 2.4 ± 2.5 3.4 ± 2.4 0.021
SaO2 (%) 100.0 ± 0.2 99.9 ± 0.2 100.0 ± 0.0 0.55
FIO2 0.91 ± 0.13 (31) 0.89 ± 0.15 (14) 0.92 ± 0.12 0.80
P/F Ratio 409 ± 60 (31) 435 ± 88 (14) 389 ± 73 (19) 0.19
VD/VT 0.39 ± 0.07 0.39 ± 0.09 0.39 ± 0.07 0.93

Data are mean ± SD, or mean ± SD (n) if n different from total; P/F ratio = PaO2/FIO2; VD/VT = measured physiological dead space; treatment groups are all erythrocytes as described in the text.