| PAOD | peripheral arterial occlusive disease; peripheral arteriosclerotic occlusive disease |
|---|---|
| pa-pv | pulmonary arterial pressure-pulmonary venous pressure |
| PAS | para aminosalicylate; Parent Attitude Scale; patient administration system; patient appointments and... |
| PAWP | pulmonary arterial wedge pressure |
| pHA | arterial blood hydrogen tension |