. 2016 Sep 29;31(1):56–64. doi: 10.7555/JBR.31.20160108

Table 3.

Partial pressure of oxygen (PaO₂), arterial hemoglobin oxygen saturation (SaO₂), arterial oxygen tension (PaO₂)/ inspired oxygen fraction (FiO₂), acidity (pH), and carbon dioxide tension (PaCO₂) over time.

	Group	0	10 minutes	30 minutes	1 hour	2 hours	3 hours
PO₂ (mmHg)	Sham	329±23	336±21	335±38	335±30	345±26	344±28
	1.0 FiO₂	319±32	128±42^*	91±29^*	107±35^*	138±45^*	169±55^*
	0.6 FiO₂	329±17	102±34^*	64±16^*	76±24^*	92±23^*^†	102±29^*^†
SaO₂ (%)	Sham	100±0	100±0	100±0	100±0	100±0	100±0
	1.0 FiO₂	100±0	98±2^*	96±2^*	97±2^*	98±2	99±1
	0.6 FiO₂	100±0	98±2^*	94±2^*	96±2^*	97±2^*	98±2^*
PaO₂/FiO₂	Sham	549±39	560±35	558±64	559±51	575±43	573±46
	1.0 FiO₂	531±54	128±42^*	91±29^*	107±35^*	138±45^*	169±55^*
	0.6 FiO₂	549±28	170±57^*	106±26^*	127±40^*	154±38^*	170±48^*
pH	Sham	7.57±0.12	7.45±0.18	7.47±0.10	7.47±0.09	7.46±0.11	7.38±0.12
	1.0 FiO₂	7.60±0.12	7.49±0.09	7.44±0.10	7.40±0.09	7.39±0.08	7.39±0.08
	0.6 FiO₂	7.59±0.10	7.52±0.11	7.47±0.07	7.44±0.06	7.42±0.03	7.43±0.06
PaCO₂(mmHg)	Sham	26±3	28±3	28±4	26±4	26±5	24±5
	1.0 FiO₂	25±3	27±3	30±4	30±6	29±4	27±4
	0.6 FiO₂	27±2	27±4	29±4	29±4	29±4	25±3

Data are expressed as mean±SD (standard deviation). n = 10 in the sham and 1.0 FiO₂ group, n = 7 in the 0.6 FiO₂ group. * P < 0.05 vs. the sham group, ^†P < 0.05 vs. the 1.0 FiO₂ group.