| R-Lsh | right-left shunt |
|---|---|
| R-SIRS | Revised Seriousness of Illness Rating Scale |
| R-W | Rideal-Walker [coefficient] |
| R-Y | Roux-en-Y [anastomosis] |
| R. | Rickettia; 리케치아(속) R. Typhi; 발진열리케치아 |
| r/h | roentgens per hour |
| r/hr | roentgens per hour |
| R/O | rule out |
| R/P | respiratory pulse [rate] |
| R/s | roentgens per second |