| Abbreviation | Definition |
|---|---|
| APGAR | Activity, Pulse, Grimace, Appearance, and Respiration |
| APH | Acadia Pathways Hospital |
| APH | Acute Partial Hospital |
| APH | Arnold Palmer Hospital |
| APHA | Alberta Public Health Association |
| APHP | Adolescent Partial Hospitalization Program |
| APHP | Associação Portuguesa de Hospitalização Privada |
| APMS | Acute Pain Management Service |
| APMS | Alternative Provider Medical Services |
| APOS | A Positive blood type |
| APPN | Advanced Practice Psychiatric Nurse |
| APPY | APPendectomY |
| APS | Automated Patient System |
| APSH | Ampang Puteri Specialist Hospital |
| APSU | Australian Paediatric Surveillance Unit |
| APTX | Aprataxin |
| ARAM | Abdur Razzaque Ansari Memorial |
| ARC | Accessible, Responsive, and Caring |
| ARC | Annual Rate of Change |
| ARCH | Area Rescue Consortium of Hospitals |