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