| aPTT | activated Partial Thromboplastin Time |
|---|---|
| APTT, aPTT | activated partial thromboplastin time |
| APUD | Amine Precursor Uptake & Decarboxylation |
| APUD | amine precursor uptake and decarboxylation |
| APV | abnormal posterior vector |
| APVC | anomalous pulmonary venous connection |
| APW | alkaline peptone water |
| APWS | attending physician work station |