| R/P | respiratory pulse [rate] |
|---|---|
| RQ | recovery quotient; [Hazardous Substance] Reportable Quantities [List]; reportable quantity; respirat... |
| RRC | residency review committee; risk reduction component; routine respiratory care; Royal Red Cross; rur... |
| RRI | recurrent respiratory infection; reflex relaxation index; relative response index |
| RRIS | recurrent respiratory infection syndrome |
| RS | respiratory system |
|---|---|
| URI | upper respiratory tract infection |