0 Min | 10 Min | 30 Min | ||||
---|---|---|---|---|---|---|
Room Air | Oxygen | Room Air | Oxygen | Room Air | Oxygen | |
pO_{2} mm Hg | 31 (17)^{a} | 30 (22)^{b} | 76 (32)^{a} | 87 (49)^{d} | 74 (29)^{e} | 89 (42)^{f} ^{*} |
pCO_{2} mm Hg | 50 (15) | 50 (19)^{b} | 39 (14)^{c} | 38 (13)^{d} | 32 (13)^{g} | 30 (11)^{h} |
pH | 7.11 (0.14)^{i} | 7.12 (0.18)^{j} | 7.17 (0.11)^{k} | 7.15 (0.13)^{l} | 7.25 (0.10)^{m} | 7.26 (0.12)^{n} |
BD mmol/L | 14.7 (6.1)^{o} | 14.2 (6.7)^{p} | 14.0 (5.0)^{q} | 14.5 (5.4)^{r} | 11.2 (5.2)^{s} | 12.1 (5.8)^{t} |
↵a n = 107,^{b} n = 127,^{c} n = 69, ^{d} n= 80, ^{e} n = 115,^{f} n = 156,^{g} n = 116,^{h} n = 157,^{i} n = 166,^{j} n = 197,^{k} n = 134,^{l} n = 135,^{m} n = 192,^{n} n = 219,^{o} n = 154,^{p} n = 177,^{q} n = 132,^{r} n = 134,^{s} n = 188,^{t} n = 207.
Mean (SD) values are given. Po _{2} and Pco _{2} are from arterial blood. pH and base deficit (BD) at 0 min are from either umbilical vein or artery and at 10 and 30 minutes after birth from either capillary or artery.
↵* P = .002 compared with room air value.