| AaPO2, (A-a) PO2 | alveolo-arterial oxygen tension difference |
|---|---|
| AOD | Academy of Operative Dentistry; Academy of Oral Dynamics; adult onset diabetes; anesthesiologist-on-... |
| CAO2 | arterial oxygen content |
| SaO2 | oxygen saturation in arterial blood |
| FIO2 | forced inspiratory oxygen; fractional concentration of oxygen in inspired gas |