Conversion factors for nursing students.

Units of Measure

c = cup
cc = cubic centimeters
cm = centimeters
dr = drams
dss = 2 teaspoons
fl = fluid
ft = foot
g = grams
gal = gallon
gl = glass
gr = grains
gt = drop
gtt = drops
in = inches
kg = kilograms
L = liters
lb = pound
m = meters
mcg = micrograms
mEq = milliquivalents
mg = milligrams
mL = milliliters
mm = millimeters
oz = ounce
pt = pint
qt = quart
tbsp = tablespoons
tsp = teaspoons
U = unit

Other Abbreviations

a = before (ante)
ABG = arterial blood gas
ABT = antibiotic therapy
ac = before meals (ante cibum)
AD = right ear (auricula dexter)
ADH = antidiuretic hormone
ad lib = as desired
ADA = American Diabetes Ass.
am = before noon (ante meridian)
AMA = against medical advice
aq = water
AS = left ear (auricula sinister)
AU = both ears (auriculi utro)
bid = twice a day (0900, 1700)
BP = blood pressure
BUN = blood urine nitrogen
c = with
cap = capsule
CAD = coronary artery disease
CAT = computerized axial tomography
CBC = complete blod count
CF = cystic fibrosis
CHF = congestive heart failure
CNS = central nervous system
CO = cardiac output
COPD = chronic obstructive pulmonary disease
CPK = creatinine phosphokinase
CSF = cerebrospinal fluid
CVA = cerebrovascular accident
CVP = central venous pressure
EC = enteric coated
ECG = electrocardiogram
EEG = electroencephalogram
elix = elixir
ext = extract
GFR glomerulofiltration rate
GT = gastrostomy
h = hour
hct = hematocrit
hgb = hemoglobin
hs = hour of sleep, bedtime (2100)
ID = intradermal
ICP = intracranial pressure
IM = intramuscular
IV = intravenous
IVP = intravenous push/pyelogram
IVPB = intravenous piggyback
KVO = keep vein open
MI = myocardial infarction
NG = nasogastric
NJ = nasojejunal
NPO = nothing by mouth
NS = normal saline
OD = right eye (oculus dexter)
oint = ointment
OTC = over the counter
OS = left eye (oculus sinister)
OU = both eyes (oculo utro)
p = after (post)
pc = after meals (post cibum)
per = by
pm = after noon (post meridian)
po = by mouth (per os)
pr = per rectal
prn = whenever necessary
PT = prothrombin time
PTT = partial prothrombin time
q = every
q1h = every 1 hour
q2h = every 2 hours
q3h = every 3 hours
q4h = every 4 hours (0900, 1300, 1700,...0500)
q6h = every 6 hours (2400, 0600, 1200, 1800)
q8h = every 8 hours (0600, 1400, 2200)
qd = every day (0900)
qh = every hour
qid = four times a day (0900, 1300, 1700, 2100)
qod = every other day
qs = quantity sufficient
RBC = red blood count
ROM = range of motion
s = without
sc = subcutaneous
sl = sublingual
sol = solution
sq = subcutaneous
SR = sustained release
ss = one half
S/S = signs and symptoms
stat = immediately
supp = suppository
susp = suspension
syr = syrup
tab = tablet
tid = three times a day (0900, 1300, 1700)
TO = telephone order
tr = tincture
ung = ointment
UTI = urinary tract infection
VO = verbal order
VS = vital signs
WBC = white blood count
WNL = within normal limits


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