| RADAR | rapid assessment of disease activity in rheumatology |
|---|---|
| RADS | reactive airways dysfunction syndrome; retrospective assessment of drug safety |
| RAI | radioactive iodine; radioactive isotope; resident assessment instrument; resting ankle index; right ... |
| RAP | recurrent abdominal pain; regression-associated protein; renal artery pressure; resident assessment ... |
| SAC | saccharin; sacrum; screening and acute care; Self-Assessment of Communication [scale]; short-arm cas... |