| QS | question screening; quiet sleep |
|---|---|
| Qs | systemic blood flow |
| Qs | systemic blood flow |
| qs | as much as will suffice [Lat. quantum sufficit]; sufficient quantity [Lat. quantum satis] |
| QSAR | quantitative structure-activity relationship |
| QSART | quantitative sudomotor axon reflex testing |
| QSPV | quasistatic pressure volume |
| QSS | quantitative sacroiliac scintigraphy |
| QST | quantitative sensory test |