Table 5. Arterial blood gas results.

	Rapid (N = 12)		Slow (N = 12)
ABG parameter	Mean	SD	Mean	SD	p-value*
pH, initial	7.46	0.07	7.44	0.10	0.659
pH, 15 min	7.40	0.10	7.44	0.09	0.438
pH, final	7.45	0.10	7.37	0.18	0.237
pCO2 (mm Hg), initial	39.3	7.1	46.5	11.6	0.085
pCO2 (mm Hg), 15 min	36.5	12.7	34.4	10.8	0.671
pCO2 (mm Hg), final	32.1	15.4	34.6	16.6	0.709
pO2 (mm Hg), initial	443	27	451	34	0.548
pO2 (mm Hg), 15 min	445	34	434	50	0.561
pO2 (mm Hg), final	414	48	414	55	0.983
Bicarbonate (mmol/L), initial	3.4	2.5	4.4	2.6	0.315
Bicarbonate (mmol/L), 15 min	-2.8	4.2	-1.7	2.4	0.454
Bicarbonate (mmol/L), final	-3.4	6.7	-6.4	6.2	0.281
Base Excess (mmol/L), initial	27.0	2.5	28.7	2.3	0.096
Base Excess (mmol/L), 15 min	21.5	4.3	21.8	3.4	0.864
Base Excess (mmol/L), final	20.7	6.7	18.3	5.8	0.391

Final value was obtained at imminent death or at completion of observation period (60 or 180 min for the Rapid vs. Slow group, respectively).

*Unpaired t-test.