| PRPP | Phospho-Ribosyl-Pyro-Phosphate |
|---|---|
| HAT | Halsted Aphasia Test; head, arm, trunk; heparin-associated thrombocytopenia; heterophil antibody tit... |
| HGPRT | hypoxanthine guanine phosphoribosyl transferase |
| HPRT | hypoxanthine-guanine phosphoribosyltransferase |
| AHU | acute hemolytic uremic [syndrome]; arginine, hypoxanthine, and uracil |