| RPI | regional perfusion index; relative percentage index; reticulocyte production index, ribose 5-phospha... |
|---|---|
| VI | Roman numeral six; vaginal irrigation; variable interval; vastus intermedius; virgo intacta; virulen... |
| EPB | Extensor Pollisis Brevis |
| ECRB | extensor carpi radialis brevis |
| ECRL | extensor carpi radialis longus |