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. Author manuscript; available in PMC: 2010 Feb 15.
Published in final edited form as: Anesthesiology. 2010 Feb;112(2):395. doi: 10.1097/ALN.0b013e3181c98da9

Table 2.

Blood Analysis Data (Mean ± SEM) for Estradiol- versus Vehicle-treated Ovariectomized Wild-type Mice

Parameter Vehicle
(N = 5)
Estradiol
(N = 5)
pH
 Baseline 7.3 ± 0.0 7.3 ± 0.0
 5-min recovery 6.6 ± 0.0 6.6 ± 0.0
 15-min recovery 6.8 ± 0.0 6.7 ± 0.1
Paco2, mmHg
 Baseline 52 ± 2 47 ± 1
 5-min recovery 78 ± 5 86 ± 4
 15-min recovery 50 ± 4 51 ± 5
Pao2, mmHg
 Baseline 286 ± 15 288 ± 15
 5-min recovery 358 ± 32 281 ± 30
 15-min recovery 462 ± 29 423 ± 56
Bicarbonate, mEq/L
 Baseline 21 ± 1 21 ± 1
 5-min recovery 8.0 ± 0 7.7 ± 1
 15-min recovery 7.0 ± 1 6.9 ± 1
Hemoglobin, mg/dL
 Baseline 14.1 ± 0.2 14.3 ± 0.2
 5-min recovery 12.1 ± 0.4 11.7 ± 0.7
 15-min recovery 11.8 ± 0.5 12.1 ± 0.7

Arterial blood analysis data from ovariectomized estrogen- and vehicle-treated mice. Arterial blood was obtained from the femoral artery in animals that underwent placement of arterial catheters but not cardiac arrest (“baseline”), and in animals that underwent cardiac arrest, 5 min after return of spontaneous circulation, and 15 min after return of spontaneous circulation. Values were similar for all parameters across groups. Data presented are mean ± SEM. SEMs of “0” and “0.0” resulted from rounding to appropriate significant digits.

Paco2 = arterial carbon dioxide tension; Pao2 = arterial oxygen tension.