| A-NPP | absorbed normal pooled plasma |
|---|---|
| A/P | abdominal/perineal; antepartum; ascites/plasma [ratio] |
| APHP | anti-Pseudomonas human plasma |
| APP | acute phase protein; alum-precipitated pyridine; aminopyrazolopyrimidine; amyloid peptide precursor;... |
| ARP | absolute refractory period; American Registry of Pathologists; anticipated recovery path; apolipopro... |