ABG Components:
- pH = measured acid-base balance of the blood
- PaO2 = measured the partial pressure of oxygen in arterial blood
- PaCO2 = measured the partial pressure of carbon dioxide in arterial blood
- HCO3 = calculated concentration of bicarbonate in arterial blood
- Base excess/deficit = calculated relative excess or deficit of base in arterial blood
- SaO2 = calculated arterial oxygen saturation unless a co-oximetry is obtained, in which case it is measured
