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3 times a day t.i.d., t.d. ter in die: 3 times a day AMA style avoids use of this abbreviation (spell out "3 times a day") tinct. tinctura: tincture t.i.w. 3 times a week mistaken for "twice a week" top. topical TPN total parenteral nutrition tr, tinc., tinct. tinctura: tincture trit. triturate: grind to a powder troch. trochiscus: lozenge tsp
4 times a day quater die sumendum q.i.d, qid 4 times a day quater in die q.h., qh every hour, hourly quaque hora q.o.d., qod every other day / alternate days quaque altera die q.p.m., qPM, qpm every afternoon or evening: quaque post meridiem q.s., qs a sufficient quantity quantum sufficiat: q.wk. also qw weekly (once a week) quaque week
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.
6WK - six times a week 5WK - five times a week 4WK - four times a week 3WK - three times a week 2WK - twice a week: I dispute this, more likely "1 qds for 2wk" meaning 1 taken 4 times a day for 2 weeks QWK - once a week: Needs verifying common abbreviation 2MT - twice a month: Needs verifying common abbreviation QMT - once a month
Pronunciation follows convention outside the medical field, in which acronyms are generally pronounced as if they were a word (JAMA, SIDS), initialisms are generally pronounced as individual letters (DNA, SSRI), and abbreviations generally use the expansion (soln. = "solution", sup. = "superior").
Abbreviation Meaning Δ: diagnosis; change: ΔΔ: differential diagnosis (the list of possible diagnoses, and the effort to narrow that list) +ve: positive (as in the result of a test) # fracture: #NOF: fracture to the neck of the femur ℞ (R with crossed tail) prescription: Ψ: psychiatry, psychosis: Σ: sigmoidoscopy: x/12: x number of ...
two times a day (from Latin bis die sumendus) BE: barium enema base excess: BEAM: A type of high-dose chemotherapy used to treat lymphoma prior to a stem cell transplant BEP: bleomycin, etoposide, and cisplatin (chemotherapy regimen) BF: breastfeeding: BFP: bundle forming pilus BG: blood glucose: BGAT
Example: "We will meet the mayor at 2:00 p.m." (14:00 in 24-hour clock) p.m.a. post mortem auctoris "after the author's death" p.p. per pro. per procurationem "through the agency of" PRN pro re nata "for the thing born" As used in standard medical jargon, PRN is understood to mean "as needed". This reading of the abbreviation implies that the ...