PHARMACOLOGY

• a.c.

  before meals (ante cibum)
• ABC

  aspiration, biopsy, cytology
• ad lib


  as desired (ad libitum)
• AP


  anteroposterior
• aq

  water, aqueous (aqua)
• b.i.d

  twice a day (bis in die)
• BID

  twice a day (bis in die)
• Bx


  biopsy
• CAT


  computerized axial tomography
• CT

  computerized tomography
• D/C

  discontinue
• Dx

  diagnosis
• exc

  excision
• FU,F/U

  follow-up
• FUO


  fever of undetermined origin
• gr


  grain
• gtt


  drops (guttae)
• hs

  at bedtime (hora somni)
• hypo


  hypodermic
• I&O

  intake and output
• i.m., IM

  intramuscular
• inj


  injection
• IU

  international unit
• i.v., IV

  intravenous
• lap

  lapa
• MRI


  magnetic resonance imaging
• NPO

  nothing by mouth (non per os)
• NSAID

  non-steroidal anti-inflammatory drug (omnis die)
• od


  every day (omnis die)
• OTC

  over the counter
• paren

  parenteral
• path

  pathology
• p.c.


  after meals (post cibum)
• PDR


  Physicians’ Desk Reference
• PST

  positron emission tomography
• PO, po

  by mouth (per os)
• pp


  after a meal (post prandial)
• p.r.n.


  when needed (pro re nata)
• q.d.

  every day (quaque die)
• q.h.

  every hour (quaque hora)