| ACOS/AC | associate chief of staff for ambulatory care |
|---|---|
| ACRF | ambulatory care research facility |
| AC/SIUG | ambulatory care special-interest user group |
| ACU | acquired cold urticaria; acute care unit; agar colony-forming unit; ambulatory care unit |
| ADG | ambulatory diagnostic group; atrial diastolic gallop; axiodistogingival |