MCA
motorcycle accident
mEq.
milliequivalent
mid
middle
ml
milliliter
MRI
magnetic resonance imaging
MUGA
a noninvasive test used to detect and evaluate heart muscle function before and after exercise
M. or m
mix, median, meter, milli
mcgm.
microgram
MI
myocardial infarction
mg
milligram
mm.
millimeter
MS
multiple sclerosis
MVA
motor vehicle accident
N&V
nausea and vomiting
neg./-
negative
NKA
no known allergies
NPN
nonprotein nitrogen
NSR
normal sinus rhythm
NAD
no acute distress
NG
nasogastric
Noct. or noct.
night or at night
NPO
nothing by mouth
O
oxygen
OD
overdose
o.h.
every hour
o.m.
every morning
OR
operating room
OB
obstetrics
O.D.
right eye
O.L.
left eye
o.n.
every night
os
bone
p.
after
p.a.
in equal parts
palp.
palpated, palpitation
PBI
protein-bound iodine
PE
physical exam; pulmonary embolism
P.
pulse
PAC
premature atrial contraction
PAT
paroxysmal atrial tradycardia
p.c.
after meals, after food
ped.
pediatric, pediatrics