| Abbreviation | Meaning |
|---|---|
| q | each, every (from Latin quaque) |
| q15 | every 15 minutes |
| q6h q6° | once every 6 hours |
| q2wk | once every 2 weeks |
| qAc | Before every meal (from Latin quaque ante cibum) |
| q.a.d. | every other day (from Latin quaque altera die) |
| QALY | quality-adjusted life year |
| q.AM | every day before noon (from Latin quaque die ante meridiem) |
| q.d. | every day (from Latin quaque die) |
| q.d.s. | four times each day (from Latin quater die sumendus) |
| q.h. | each hour (from Latin quaque hora) |
| q.h.s. | every bedtime (from Latin quaque hora somni) |
| q.i.d. | four times each day (from Latin quater in die) (not deprecated, but consider using "four times a day" instead. See the do-not-use list) |
| QIDS | Quick Inventory of Depressive Symptoms |
| q.l. | as much as you like (from Latin quantum libet) |
| q.m.t. also qm | every month |
| q.n. | every night |
| QNS q.n.s. | quantity not sufficient |
| q.o.d. | every other day (from Latin quaque altera die) (deprecated; use "every other day" instead. See the do-not-use list) |
| QOF | Quality and Outcomes Framework (system for payment of GPs in the UK National Health Service) |
| q.o.h. | every other hour |
| q.s. | as much as suffices (from Latin quantum satis or quantum sufficit) |
| qt | quart |
| q.v. | which see (from Latin quod vide); as much as you please (from Latin quantum vis) |
| q.wk. also qw | weekly (once a week) |