| Abbreviation |
Term(s) |
| R |
Roentgen |
| R |
Respiration |
| R |
Right |
| RA |
Radium |
| RAD |
Radiation |
| RAD |
Radiation Absorbed Dose |
| RAD |
Radical |
| RAIU |
Radioactive iodine (I 131) uptake |
| RBC |
Red blood cells |
| RCM |
Right Costal Margin |
| RCS |
Reticulum cell sarcoma |
| REG |
Radioencephalogram |
| RES |
Reticuloendothelial system |
| RESEC |
Resection |
| RESPIR |
Respiratory |
| RH |
Rhesus (monkey) factor in blood |
| RIA |
Radioimmunoassay |
| RIF |
Right iliac fossa |
| RIQ |
Right inner quadrant (abdomen) |
| RLE |
Right lower extremity |
| RLL |
Right lower lobe (lung) |
| RLQ |
Right inner quadrant (abdomen) |
| RML |
Right middle lobe (lung) |
| RN |
Registered nurse |
| RNA |
Ribonucleic acid |
| RO, R/O |
Rule out |
| ROF |
Review of outside films |
| ROM |
Range of motion |
| ROS |
Review of outside slides |
| ROS |
Review of systems |
| ROQ |
Right outer quadrant (abdomen) |
| RSO |
Right salpingo-oophorectomy |
| R-S cells |
Reed-Sternberg cells |
| RT |
Radiation therapy |
| RT |
Right |
| RUE |
Right upper extremity |
| RUL |
Right upper lobe |
| RUQ |
Right upper quadrant |
| R-V |
Rectovaginal |
| RX |
Treatment |
