DHO Abbreviations: M, N, O

m

minim

MA

medical assistant

Mat

maternity

mcg

microgram

MD

Medical Doctor, muscular dystrophy, myocardial disease

Med

medical, medicine

mEq

milliequivalent

mg

milligram

Mg

magnesium

MI

myocardial infarction (heart attack)

MICU

medical intensive care unit

min

minute

mL, ml

milliliter

MLT

medical laboratory technician

mm

millimeter

MN

midnight

mod

moderate

MOM

milk of magnesia

MRI

magnetic resonance imaging

MS

multiple sclerosis, mitral stenosis, muscular-skeletal

MT

medical technologist

N

nitrogren

N/A

not applicable

Na

sodium

NA

nurse aide/assistant

NaCl

sodium chloride

NB

newborn

N/C

no complaints

neg

negative, none

Neur

neurology

NG, ng, N/G

nasogastric tube

NICU

neurological intensive care unit

NIDDM

non-insulin dependent diabetes mellitus

NIH

National Institutes of Health

nil

none

NKA

no known allergies

NKDA

no known drug allergies

no

number

NO

nursing office

noc, noct

at night, night

NP

nurse practitioner

NPN

nonprotein nitrogren

NPO

nothing by mouth

N/S, NS

normal saline

Nsy

nursery

N/V, N&V

nausea and vomiting

NVD

nausea, vomiting, diarrhea

NVS

neurological vital signs

O2

oxygen

O&P

ova and parasites

Ob, Obs

obstetrics

OBRA

Omnibus Budget Reconciliation Act

od

overdose

OD

right eye, occular dextra, Doctor of Optometry

oint

ointment

OJ

orange juice

OOB

out of bed

OP

outpatient

OPD, OPC

outpatient department or clinic

opp

opposite

OR

operating room

Ord

orderly

Orth

orthopedics

os

mouth

OS

left eye, occular sinistra

OSHA

Occupational Safety and Health Administration

OT

occupational therapy/therapist

OTC

over the counter

OU

each eye

OV

office visit

oz

ounce