q.i.d. (on prescription)
If a medicine is to be taken every so-many hours, it is written “q_h”; the “q” standing for “quaque” and the “h” indicating the number of hours. So, for example, “2 caps q4h” means “Take 2 capsules every 4 hours.”
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- q.n.s.
On a lab report, insufficient quantity of sample.
- q.s.
On a prescription, as needed.
- q_h (on prescription)
q.d. (qd or QD) is once a day; q.d. stands for “quaque die” (which means, in Latin, once a day). b.i.d. (bid or BID) is twice a day; b.i.d. stands for “bis in die” (which means twice a day). t.i.d. (or tid or TID) is three times a day ; t.i.d. stands for “ter in […]
- qd (on prescription)
If a medicine is to be taken every so-many hours, it is written “q_h”; the “q” standing for “quaque” and the “h” indicating the number of hours. So, for example, “2 caps q4h” means “Take 2 capsules every 4 hours.”
- QALY
Quality adjusted life year, a year of life adjusted for its quality or its value. A year in perfect health is considered equal to 1.0 QALY. The value of a year in ill health would be discounted. For example, a year bedridden might have a value equal to 0.5 QALY.