| BUO | bleeding of undetermined origin, bruising of undetermined origin |
|---|---|
| CU | cardiac unit; casein unit; cause unknown or undetermined; chymotrypsin unit; clinical unit; color un... |
| B&S | Brown and Sharp [sutures] |
| PSW | primary surgical ward; positive sharp wave; psychiatric social worker |
| S/D | sharp/dull; systolic/diastolic |