| AADO2, (a-A) DO2 | arterio-alveolar oxygen tension difference |
|---|---|
| AaPO2, (A-a) PO2 | alveolo-arterial oxygen tension difference |
| AJDO2 | arteriojugular venous oxygen content difference |
| FIO2 | forced inspiratory oxygen; fractional concentration of oxygen in inspired gas |
| HO | hand orthosis; heterotopic ossification; high oxygen; hip orthosis; history of; Holt-Oram [syndrome]... |