Table 2.

Blood gas measurements (n = 16).

Time Point		0 min	30 min	90 min	120 min	150 min	210 min	240 min
		Normoxia (FiO2 = 0.21)			Hypoxia (FiO2 = 0.13)
paO2 (torr)	RB	98 ± 5	88 ± 4	88 ± 6	93 ± 4	35 ± 4	33 ± 2	33 ± 2
	control	98 ± 6	90 ± 5	87 ± 3	93 ± 3	35 ± 5	33 ± 3	34 ± 4
paCO2 (torr)	RB	37 ± 2	40 ± 3 1	39 ± 2	37 ± 1	38 ± 4	39 ± 5	39 ± 5
	control	35 ± 2	35 ± 3	35 ± 3	36 ± 2	34 ± 5	36 ± 3	37 ± 3
pH	RB	7.44 ± 0.03	7.40 ± 0.01 1	7.40 ± 0.02	7.43 ± 0.03	7.44 ± 0.04	7.33 ± 0.09	7.29 ± 0.10
	control	7.46 ± 0.02	7.46 ± 0.03	7.43 ± 0.06	7.51 ± 0.02	7.48 ± 0.04	7.43 ± 0.04	7.39 ± 0.05
pvO2 (torr)	RB	37 ± 2	35 ± 2	34 ± 2	34 ± 3	22 ± 1	17 ± 2	14 ± 2 1
	control	36 ± 0	33 ± 2	33 ± 2	35 ± 3	22 ± 3	19 ± 2	21 ± 4
pvCO2 (torr)	RB	41 ± 2	46 ± 3 1,2	46 ± 2 1,2	43 ± 2	43 ± 4	47 ± 6 3	48 ± 6 3
	control	41 ± 3	40 ± 5	41 ± 4	41 ± 4	39 ± 4	40 ± 3	42 ± 3

¹p < 0.05 versus control, ² p < 0.05 versus 0 min, ³ p < 0.05 versus 150 min. PaO₂ reflects arterial partial pressure of oxygen; paCO₂ reflects arterial partial pressure of carbon dioxide; pH reflects arterial pH; pvO₂ reflects mixed venous partial pressure of oxygen; pvCO₂ reflects mixed venous partial pressure of carbon dioxide. RB reflects Red Bull energy drink. Piglets (n = 8) received 10 mL/kg Red Bull at 0 min and 5 mL/kg at 150 min, respectively. Values are mean ± standard deviation.