| Abbreviation | Definition |
|---|---|
| AMT | anxiety management training |
| AMT | atherogenic metabolic triad |
| AMU | acute medical unit |
| AMU | Army Medical Unit |
| ANDPB | advisory non-departmental public body (quango) |
| ANH | academic nursing home |
| ANH | acute normovolaemic haemodilution |
| ANH | artificial nutrition and hydration |
| ANH | atrial natriuretic hormone |
| ANHSO | Association of National Health Service Officers |
| ANP | acute necrotising pancreatitis |
| ANP | advanced nurse practitioner |
| ANP | autonomic neuropathy |
| ANS | ataxia neuropathy spectrum |
| AO | abdominal obesity |
| AO | Accountable Officer |
| AO | accreditation organisation |
| AO | acid output |
| AO | acridine orange |
| AO | adult onset |