Browse Medical Abbreviations

I antibody (allergy testing); incisal; infant; Iodine (element)
I&D incision and drainage
I&O intake and output
i.e. that is
I.U. international unit
I/E inspiratory/expiratory
IA incidental appendectomy; intra-amniotic; intra-arterial
IABP intra-aortic balloon pressure/pump
IAC internal auditory canal
IADL instrumental activities of daily living
IAW in accordance with
IBC iron binding capacity
IBCLC international board certified lactation consultant
IBD inflammatory bowel disease
IBM inclusion body myositis
IBRP independent bathroom privileges
IBS irritable bowel syndrome
IBW ideal body weight
IC interstitial cystitis; inspiratory capacity; informed consent; infection control; immune complex
iCa ionized calcium
ICD implantable cardioverter defibrillator; international classification of diseases
ICER incremental cost effectiveness ratio
ICF intracellular fluid; intermediate care facility
ICH intracerebral hemorrhage
ICMP ischemic cardiomyopathy
ICN international council of nurses
ICP integrated care provider/partnership; intracranial pressure
ICS intercostal space
ICSH interstitial cell-stimulating hormone
ICU intensive care unit
ID identification; immunodiffusion; infectious disease; intradermal
Id. the same
IDA Iron-deficiency anemia
IDC institution disciplinary committee
IDD insulin dependent diabetes
IDDM insulin-dependent diabetes mellitus
IDG interdisciplinary group
IDH ischemic heart disease
IDM infant of diabetic mother
IDP individual development plan
IDR idiosyncratic drug reaction
IDT interdisciplinary team
IDU idouridizine; injection drug user
IED improvised explosive device
IEE intervention effect estimate
IEF isoelectric focusing
IEM inborn error of metabolism
IF immunofluorescence
IFA immunofluorescence assay
IFC interferential current
IFE immunofixation electrophoresis
IFG impaired fasting glucose
IFN interferon
IFN-g Interferon-gamma
IFR instrument flight rules
IG immune globulin(s)
Ig immunoglobulin
IgA immunoglobulin A
IgD immunoglobulin D
IgE immunoglobulin E
IGF insulin-like growth factor
IgG immunoglobulin G
IGH impaired glucose homeostasis
IGIV immune globulin intravenous
IgM immunoglobulin M
IGR intrauterine growth retardation
IGRA interferon gamma release assay
IGT impaired glucose tolerance
IHD ischemic heart disease
IHSS idiopathic hypertrophic subaortic stenosis
II intellectual impairment
IICP increased intracranial pressure
IID intermittent infusion device (saline lock)
IIF indirect immunofluorescence
IJ internal jugular
IL interleukin
ILAR associations for rheumatology
IM intramuscular; internal medicine; infectious mononucleosis
IMA (L/R) internal mammary artery-left/right
IMC intermediate care
imm immunization
immed immediate, immediately (at once)
imp impression
impair impaired, impairment
IMV intermittent mandatory ventilation
in inch (25.4 mm)
In Indium (element)
IN intranasal
in d. daily
in utero within the uterus
incompat incompatible
incompl incomplete
incr increase
ind independent
indic indicate, indication
INF interferon
inf inferior; infant
InFeD iron dextran
inflam inflammation
Info information
ing inguinal
INH Isoniazid
inh inhalation
inhal inhalation
inhib inhibit, inhibitor
inj injection; injury
INPT inpatient
INR international normalized ratio
insp inspiration
inst institution; instruction, instructed; instrument
insuff insufficient
int internal; intermittent
inv inversion
IOC intraoperative cholangiogram
IOI intraosseous infusion
IOL intraocular lens
IOP intraocular pressure; intensive outpatient program
IOV initial office visit
IP ice pack; inpatient; interphalangeal
IP joint interphalangeal joint
IPAP inspired positive airway pressure
IPC integrated personal commissioning
IPD intermittent peritoneal dialysis
IPG impedance plethysmography
IPI international prognostic index
IPN interstitial pneumonia
IPOC interdisciplinary plan of care
IPP intermittent positive pressure
IPPA inspection, palpation, percussion and auscultation
IPPB intermittent positive pressure breathing
IPS idiopathic pneumonia syndrome
IPV inactivated poliovirus (vaccine); intrapulmonary percussive ventilation
IQ intelligence quotient
Ir Iridium (element)
IR internal rotation
IRB institutional review board; investigational review board
irreg irregular
irrig irrigate, irrigation
IRS identical, related, or similar
IRV inspiratory reserve volume
IS incentive spirometry
ISA intrinsic sympathomimetic activity
ISB incentive spirometry breathing
ISDN isosorbide dinitrate
ISG immune serum globulin
ISH isolated systolic hypertension
ISMN isosorbide mononitrate
ISR immune status ration
IT intrathecal
ITB iliotibial band
ITP idiopathic/immune thrombocytopenia purpura
ITT intent to treat
IU international unit
IUCD intrauterine contraceptive device
IUD intrauterine device (contraceptive)
IUFD intrauterine fetal death/demise
IUGR intrauterine growth retardation
IUI intrauterine insemination
IUO investigation use only
IUP intrauterine pregnancy
IUPC intrauterine pressure catheter
IUS intrauterine system
IV intravenous
IV&V independent verification and validation
IVAD intravenous access device
IVC inferior vena cava; intravenous cholangiogram
IVCD intra ventricular conduction delay
IVD in vitro diagnostics; intervertebral disk disease
IVDA intravenous drug abuse
IVDC intravascular disseminated coagulation
IVE intravascular embolization
IVF intravenous feeding; in vitro fertilization
IVH intraventricular hemorrhage
IVHA intravenous hyperalimentation
IVIG intravenous immunoglobulin
IVMD in vitro medical device
IVP intravenous pyelogram; intravenous push; intravenous piggyback
IVPB intravenous piggyback
IVRA iv regional anesthesia
IVSS intravenous soluset
IVU intravenous urography
IWMI inferior wall myocardial infarction