Table 1.

Venous Blood Gas Analysis

Time	pH	pCO2	pO2	Bicarb	O2 sat	FiO2
Admission	7.29	92	23	44	33%	RA
HD 3, on Naloxone	7.39	67	39	41	73%	3L NC
Discharge	7.44	57	60	39	92%	3L NC

Bicarb = bicarbonate concentration; FiO₂ = partial pressure of inspired oxygen; HD = hospital day; NC = nasal canula; pCO₂ = partial pressure of carbon dioxide; pO₂ = partial pressure of oxygen; O₂ sat = oxygen saturation; RA = room air.