| dRVVT | dilute Russell viper venom time |
|---|---|
| RSS | rat stomach strip; rectosigmoidoscopy; Russell-Silver syndrome |
| RV | random variable; rat virus; Rauscher virus; rectovaginal; reinforcement value; renal vein; residual ... |
| RVV | right ventricular volume; rubella vaccine-like virus; Russell viper venom |
| RVVT | Russell viper venom time |