| ALOS | average length of stay |
|---|---|
| AMP | accelerated mental processes; acid mucopolysaccharide; adenosine monophosphate; amphetamine; ampicil... |
| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
| APN | acute pyelonephritis; advanced practice nurse; average peak noise |
| APR | abdominoperineal resection; absolute proximal reabsorption; acute phase reaction or reactant; amebic... |