Table 1.

Effects of ventilation with elevated Pico₂ on arterial blood gases, pH, and mean arterial pressure (MAP) of newborn pigs (n = 36)

	Normocapnia	Moderate hypercapnia	Severe hypercapnia
Pao2 (mmHg)	111.7 ± 2.1	103.6 ± 2.2*	94.6 ± 1.9*
Paco2 (mmHg)	35.0 ± 0.95	53.9 ± 0.88*	87.1 ± 1.7*
pHa	7.46 ± 0.01	7.28 ± 0.06*	7.09 ± 0.02*
MAP (mmHg)	72.0 ± 1.5	72.2 ± 1.8	64 ± 2.2*

*P < 0.05 compared to normocapnia.