Latin Word

Rx (prescription)

Sig., S. (directions)

Stat. (immediately, with no delay, now)

t.i.d., tid, TID (3 times a day)

t.d.s., tds (take by mouth 3 times a day)

a.c. (before meals)

a.d., ad, AD (right ear)

a.m., am, AM (morning)

nocte (every night)

a.s., as, AS (left ear)

b.i.d.id,ed,/BID (twice a day/twice daily/ 2 times daily)

h.s/ hs (at bedtime or half strength)

NPO (nothing by mouth/ not by oral administration)

qd (once a day)

p.c. (after food)

p.o., po, PO (orally/ by mouth/ oral administration)

p.r.n., prn, PRN (as needed)

q. (every)

q.1.h, q1h (every hour)

q.2.h., q2h (every 2 hours)

q.4.h., q4h (every 4 hours)

q.a.m., qAM, qam (every morning)

q.d., qd (every day/ daily)

q.h.s., qhs (every night at bedtime)

q.d.s., qds, QDS (4 times a day)

q.i.d., qid (4 times a day)

q.h., qh (every hour, hourly)