Common Medical Abbreviations

Medical Abbreviations and Their Meanings

A

  • a: before

  • a.a. or aa: of each

C

  • C: cubic centimeter (milliliter)

  • c: with

  • C::

    • Contextual meaning varies. Here used for cubic centimeter or as an abbreviation prompt for other meanings.

F

  • F:

    • Contextual meaning varies; primarily signifies a term related previously defined or related derivatives.

  • F a.s.: left ear

  • F a.u.: each ear

  • F b.i.d.: twice a day

  • F disp.: dispense

  • F non rep.: do not repeat

D

  • D.A.W.: dispense as written

  • D.C., dc, or disc.: discontinue

dx

  • dx: diagnosis

g or gm or Gm

  • g or gm: gram

gal.

  • gal.: gallon

gr.

  • gr.: grain

gtt.

  • gtt.: drop

h.s.

  • h.s.: at bedtime

IM

  • IM: intramuscular

inj.

  • inj.: injection

IV

  • IV: intravenous

  • IVP: intravenous push

  • IVPB: intravenous piggyback

L

  • L or l: liter

lb.

  • lb.: pound

mcg or μg

  • mcg or μg: microgram

mEq

  • mEq: milliequivalent

mg

  • mg: milligram

ml or mL

  • ml or mL: milliliter

NPO

  • NPO: nothing by mouth

s

  • s or S: signifies 'without'; importantly used as a prefix to denote the absence or limitation of specific attributes.

t

  • t:

    • Contextual meaning varies; generally used as a unit or time marker.

Examples of Usage

  • b.i.d.: indicates a medication that must be taken twice daily.

  • IVP: refers to the method of administering medication directly into a vein quickly.

Practical Implications

  • Understanding these abbreviations is crucial for medical professionals to ensure accurate dispensing and administration of medication.

  • Misinterpretation of abbreviations could lead to medication errors, emphasizing the need for clarity and standardization in medical communication.

Ethical Considerations

  • The use of abbreviations dictates a level of trust and professionalism in medical settings; errors can lead to significant patient risk, highlighting the importance of accuracy in record-keeping and prescriptions.