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Medical Terminology

Symbols and Abbreviations

kilo- symbol: k
centi- symbol: c
milli- symbol: m
micro- symbol: mc
meter symbol: m
kilogram symbol: kg
second symbol: s
mole symbol: mol
minute symbol: min
hour symbol: h
day symbol: d
month symbol: m
year symbol: a (annem)
carbon symbol: C
calcium symbol: Ca
chlorine; chloride symbol: Cl
phosphorus symbol: P
potassium symbol: K
hydrogen symbol: H
sodium symbol: Na
magnesium symbol: Mg
oxygen symbol: O2
water H2O
sodium chloride; salt NaCl
carbon dioxide CO2
hydrogen ion concentration pH
Rhesus factor Rh
query; question ?
micron µ
absent; negative -
present; positive +
greater than >
equal to or greater than
less than <
equal to or less than
of; per /
treatment; take; prescription ℞ ; P
number; fracture; weight; gauge #
ratio :
change Δ
intramuscular (into the muscle) IM
intravenous (into the vein) IV
subcutaneous (under the skin) sc
intradermal (into the skin) ID
right eye OD (ocular dexter)
left eye OS (ocular sinister)
both eyes OU
right ear AD (audio dexter)
left ear AS (audio sinister)
both ears AU
orally (by mouth) PO
sublingual (under the tongue) subling; SL
rectal (into the rectum) R
per vagina (into the vagina) PV
capsule(s) caps
ointment ungt; ung
suppository supp
tablet(s) tab
syrup syr
drops gtt
unit (insulin) U
direction to patient regarding amount of medication sig
as soon as possible ASAP
immediately Stat
morning AM
afternoon PM
at bedtime hs
before meals ac (ante cibum)
after meals pc (post cibum)
as necessary prn
as desired as lib
every day qd
twice a day bid
three times a day tid
four times a day qid
every hour qh; q1h
every two hours q2h
every night at bedtime qhs
every day qd
every two days q2d
every three days q3d
application of plaster of paris cast APPC
blood pressure BP
dressing drsg
enema E
hot water bottle hwb
intake and output I&O
intermittent positive pressure breathing IPPB
soap suds SS
temperature, pulse, respiration TPR
vital signs VS
weight wt
Dextrose in water D/W
5% dextrose in water D5W
2/3 saline and 1/3 dextrose 2/3 - 1/3
Normal saline NS
To keep vein open TKVO , TKO
Posterior anterior PA
Barium Ba
Gallbladder GB
Intravenous cholangiogram IVC
Intravenous pyelogram IVP
Kidney, ureters, bladder ( X-ray of) KUB
Lateral side Lat
Upper gastrointestinal tract UGIT
Blood urea nitrogen BUN
Culture and sensitivity C & S
Complete blood count CBC
White blood count differential diff
Erythrocytes sedimentation rate ESR ; sed rate
Cerebrospinal fluid CSF
Fasting blood sugar FBS
Hemoglobin Hb ; Hgb
Lumbar puncture LP
Packed cell volume PCV
Prothrombin time PT ; pro time
Partial thromboplastin time PPT
Red blood cells rbc
Red blood cell count RBC
Specimen Spec
White blood cells wbc
White blood cell count WBC
Ears, eyes nose, and throat EENT
Intensive care unit ICU
Coronary care unti CCU
Laboratory Lab
Operating room OR
Outpatient department OPD
Recovery room RR
Abdomen abd
Approximately Approx
Bowel movement BM
Bathroom privileges BRP
Cancer Ca
Canadian Diabetes Association CDA
Diet as tolerated DAT
With -- C
Without -- S
Discontinue Disc ; D/C
Doctor Dr
Fluid Fld
Irregular Irreg
Left Lt ; L
Medical, medication med
Negative neg
Nothing by mouth npo
Nursing nrsg
Telephone order p/o ; t/o
Positive pos
Right Rt, R
Surgical surg
Verbal order v/o
partial pressure of oxygen pO2
partial pressure of carbon dioxide pCO2
arteriosclerotic heart disease ASHD
congestive heart failure CHF
chronic obstructive lung disease COLD
chronic obstructive pulmonary disease COPD
cerebrovascular accident CVA
cystoscopy cysto
dilation and curettage D & C
electrocardiogram ECG : EKG
electroencephalogram EEG
examination under anaesthetic EUA
incision and drainage I & D
laparotomy lap
myocardial infarction MI
motor bike accident MBA
motor vehicle accident MVA
not yet diagnosed NYD
submucous resection SMR
short of breath sob
tonsillectomy and adenoidectomy T & A
transurethral resection TUR
transurethral prostatic resection TUPR
artificial rupture of membranes ARM
antepartum AP
crcumcision circ
contractions cont
expected date of confinement EDC
fetal heart rate FHR
last menstrual period LMP
last normal menstrual period LNMP
Created by: KariTansowny