What Is An abg? pH HI PCO2 Partial pressure CO2 PO2 Partial pressure O2 HCO2 Bicarbonate bE Base excess Sao Oxygen SaturationWhat Is An ABG? pH [H+ ] PCO2 Partial pressure CO2 PO2 Partial pressure O2 HCO3 Bicarbonate BE Base excess SaO2 Oxygen Saturation