Medical Abbreviations G-O

g

gram

GBS

gallbladder series

G&D

growth and development

GI

gastrointestinal

Gm, gm

gram

gr

grain

gt, gtt

drop, drops

GTT

glucose tolerance test

GU

genitourinary

GYN

gynecology

h, hr

hour 

HA

headache

HAI

healthcare associated infection

HB, Hgb

hemoglobin

hct

hematocrit

HEENT

head, eyes, ears, nose, throat

HIV

human immunodeficiency virus

HO, H/O 

history of 

H&P

history and physical

HPI

history of present illness

HPV

human papillomavirus

HTN

hypertension 

Hx

history

ICU

intensive care unit

I&D

incision and drainange

IDDM

insulin-dependent diabetes mellitus 

IHI

individually indentifiable health information 

IM

intramuscular

inf.

infusion; inferior

inj

injection

I&O

intake and output

IT

inhalation therapy 

IUD

intrauterine device

IV

intravenous

KUB

kindneys, ureters, bladder

L

liter or left 

L1, L2, etc

lumbar vertebrae

lab

laboratory

lb

pound

LBP

lower back pain

LBW

low birth weight

liq

liquid

LLE

left lower extremity (left leg) 

LLL

left lower lobe

LLQ

left lower quadrant

LMP

last menstrual period

lot 

lotion

LP

life partner

LUE

left upper extremity (left arm)

LUQ

left upper quadrant

m

meter

M

mix (Latin misce)

mcg

microgram

MIDI

metered dose inhaler

mEq

milliequivalent

mg

milligram

MI

myocardial infarction 

min

minute, minimum

mL

milliliter

mm

millimeter

MM

mucous membrane 

mmHg

millimeters of mercury

MOLST

medical orders for life-sustaining treatment

MOST

medical orders for scope of treatment

MRI

magnetic resonance imaging

MS

multiple sclerosis

NB

newborn 

NED

no evidence of disease

NIDDM

noninsulin-dependent diabetes mellitus

NKA

no known allergies

no

#number 

noc, noct

night

NP

new patient

npo, NPO

nothing by mouth

NS

normal saline

NSAID

nonsteroidal anti-inflammatory drug

NTP

normal temperature and pressure

N&V, N/V 

nausea and vomiting 

NYD

not yet diagnosed

OB

obstetrics

OC

oral contraceptive

oint

ointment 

OOB

out of bed 

OPD

outpatient department

OPS

outpatient services

OR

operating room

OT

occupational therapy 

OTC

over-the-counter

oz

ounce