| NAR | nasal airway resistance; National Association for Retarded [Children, Citizens]; no action required |
|---|---|
| N-CPAP, | n-CPAP nasal continuous positive airway pressure |
| OA/BVM | oral airway/bag-valve-mask |
| OAD | obstructive airway disease; organic anionic dye |
| PAO | peak acid output; peripheral airway obstruction; plasma amine oxidase; polyamine oxidase; pulmonary ... |