Browse Medical Abbreviations

I antibody (allergy testing); infant; Iodine (element); incisal; independent
I&D incision and drainage
I&O intake and output
i.e. that is (id est)
I/E inspiratory/expiratory
IA incidental appendectomy; intra-amniotic; intra-arterial
IABC intra-aortic balloon counterpulsation
IABP intra-aortic balloon pressure/pump
IAC internal auditory canal; interposed abdominal compression (CPR)
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 immune complex; infection control; informed consent; inspiratory capacity; interstitial cystitis; intracardiac
iCa ionized calcium
ICCE intracapsular cataract extraction
ICD International Classification of Diseases; implantable cardioverter defibrillator; intrauterine contraceptive device; ischemic cardiac disease
ICE ideas, concerns, and expectations
ICER incremental cost effectiveness ratio
ICF intermediate care facility; intracellular fluid
ICH intracerebral hemorrhage
ICMP ischemic cardiomyopathy
ICN International Council of Nurses
ICP intracranial pressure; integrated care provider/partnership
ICS intercostal space; inhaled corticosteroid
ICSH interstitial cell-stimulating hormone
ICSI intracytoplasmic sperm injection
ICT insulin coma therapy
ICTV International Committee on Taxonomy of Viruses
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; isocitrate dehydrogenase
IDM infant of diabetic mother
IDP individual development plan
IDR idiosyncratic drug reaction
IDT interdisciplinary team
IDU idouridizine; idoxuridine; injection drug user
IDV indinavir (antiviral drug)
IED improvised explosive device
IEE intervention effect estimate
IEF isoelectric focusing
IEM inborn error of metabolism
IF immunofluorescence; infertility; interferon; intrinsic factor
IFA immunofluorescence assay
IFC interferential current
IFE immunofixation electrophoresis
IFG impaired fasting glucose
IFN interferon
IFN-g Interferon-gamma
IFR infection fatality ratio; instrument flight rules
iFR instant wave-free ratio
Ig immunoglobulin
IG immune globulin(s)
IgA immunoglobulin A
IgD immunoglobulin D
IgE immunoglobulin E
IGF insulin-like growth factor
IGF-1 insulin-like growth factor 1
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
IH infectious hepatitis
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 infectious mononucleosis; intramuscular; internal medicine
IMA inferior mesenteric artery
IMA (L/R) internal mammary artery-left/right
IMC intermediate care
imm immunization
immed immediate, immediately (at once)
IMP investigational medicinal product
imp impression
impair impaired, impairment
IMRT intensity-modulated radiation therapy
IMV intermittent mandatory ventilation
in inch (25.4 mm); inch
In Indium (element)
IN intranasal
in d. daily
in utero within the uterus
incompat incompatible
incompl incomplete
incr increase
ind independent
IND investigational new drug
indic indicate, indication
INF interferon
inf inferior; infant
InFeD iron dextran
inflam inflammation
Info information
ing inguinal
inh inhalation
INH Isoniazid
inhal inhalation
inhib inhibit, inhibitor
inj injection; injury
INPT inpatient
INR international normalized ratio
insp inspiration
inst instruction, instructed; instrument; institution
insuff insufficient
int intermittent; internal
inv inversion
IOC intraoperative cholangiogram
IOI intraosseous infusion
IOL intraocular lens
IOM Institute of Medicine
IOP intraocular pressure; intensive outpatient program
IOV initial office visit
IP intraperitoneal; interphalangeal; inpatient; ice pack
IP joint interphalangeal joint
IPA Independent Practice Association
IPAP inspired positive airway pressure
IPC integrated personal commissioning
IPD intermittent peritoneal dialysis
IPG impedance plethysmography
IPI International Prognostic Index
IPJ interphalangeal joint
IPN interstitial pneumonia
IPOC interdisciplinary plan of care
IPP intermittent positive pressure
IPPA inspection, palpation, percussion and auscultation
IPPB intermittent positive pressure breathing
IPPV intermittent positive pressure ventilation
IPS idiopathic pneumonia syndrome
IPSID immunoproliferative small intestinal disease
IPSP inhibitory postsynaptic potential
IPT interpersonal psychotherapy
IPV inactivated poliovirus (vaccine); intrapulmonary percussive ventilation
IQ intelligence quotient
IR interventional radiology; internal rotation; infrared
Ir Iridium (element)
IRB institutional review board; investigational review board
IRDS infant respiratory distress syndrome
irreg irregular
irrig irrigate, irrigation
IRS identical, related, or similar
IRT internal radiation therapy
IRV inspiratory reserve volume
IS incentive spirometry; intercostal space
ISA intrinsic sympathomimetic activity
ISB incentive spirometry breathing
ISDN isosorbide dinitrate
ISG immune serum globulin
ISH isolated systolic hypertension; in situ hybridization
ISMN isosorbide mononitrate
ISR immune status ration
IT immunotherapy; information technology; intrathecal
ITB iliotibial band
ITP idiopathic/immune thrombocytopenia purpura
ITT insulin tolerance test; intent to treat
ITU intensive therapy unit
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 intravenous cholangiogram; inferior vena cava
IVCD intra ventricular conduction delay
IVD intervertebral disk disease; in vitro diagnostics
IVDA intravenous drug abuse
IVDC intravascular disseminated coagulation
IVDU intravenous drug user
IVE intravascular embolization
IVF in vitro fertilization; intravenous feeding
IVH intraventricular hemorrhage
IVHA intravenous hyperalimentation
IVIG intravenous immunoglobulin
IVMD in vitro medical device
IVP intravenous piggyback; intravenous pyelogram; intravenous push
IVPB intravenous piggyback
IVR idioventricular rhythm; interventional radiology
IVRA intravenous regional anesthesia
IVSS intravenous soluset
IVU intravenous urography
IWMI inferior wall myocardial infarction