Dictionary of Medical Acronyms & Abbreviations

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[ I ]

I₁ | I₂ | I₃ | I₄ | I₅ | I₆ | I₇ |

IFA idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Freund's adjuvant; indirect fluorescent antibody; indirect fluorescent assay; International Fertility Association; International Filariasis Association
IFAA International Federation of Associations of Anatomists
IFABP intestinal fatty acid binding protein
IFAP ichthyosis follicularis-atrichia-photophobia [syndrome]
IFAT indirect fluorescent antibody test
IFBC International Food Biotechnology Council
IFC intermittent flow centrifugation; intrinsic factor concentrate
IFCC International Federation of Clinical Chemistry
IFCR International Foundation for Cancer Research
IFCS inactivated fetal calf serum
IFDS isolated follicle-stimulating hormone deficiency syndrome
IFE immunofixation electrophoresis; interfollicular epidermis
IFEV Ife virus
IFF inner fracture face
IFFH International Foundation for Family Health
IFG inferior frontal gyrus; interferon gamma
IFGO International Federation of Gynecology and Obstetrics
IFGS interstitial fluid and ground substance
IFGT irradiation and fusion gene transfer
IFHGS International Federation of Human Genetics Societies
IFHNOS International Federation of Head and Neck Oncologic Societies
IFHP International Federation of Health Professionals
IFHPMSM International Federation for Hygiene, Preventive Medicine, and Social Medicine
IFI immune interferon; intensified follow-up indicator [pacemaker]
IFIP International Federation for Information Processing
IFL immunofluorescence
IFLrA recombinant human leukocyte interferon A
IFM internal fetal monitor; isoleucine, phenylalanine, and methionine
IFMBE International Federation for Medical and Biological Engineering
IFME International Federation for Medical Electronics
IFMP International Federation for Medical Psychotherapy
IFMSA International Federation of Medical Student Associations
IFMSS International Federation of Multiple Sclerosis Societies
IFN interferon
IFNA interferon alpha
IFN α, β, γ interferon alpha, beta, and gamma
If nec if necessary
IFNG interferon gamma
IFNGT interferon gamma transducer
IFOS International Federation of ORL Societies
IFP inflammatory fibroid polyp; insulin, compound F [hydrocortisone], prolactin; interactive filtered projection [radiotherapy]; intermediate filament protein; intimal fibrous proliferation; intrapatellar fat pad
IFPM International Federation of Physical Medicine
IFR infrared; inspiratory flow rate
IFRA indirect fluorescent rabies antibody [test]
IFRP International Fertility Research Program
IFRT involved field radiotherapy
IFS interstitial fluid space
IFSE International Federation of Science Editors
IFSM information system; International Federation of Sports Medicine
IFSP individualized family service plan
IFSSH International Federation of Societies for Surgery of the Hand; International Forum for Social Sciences in Health
IFT immunofluorescence test; inverse Fourier transform
IFU interferon unit
IFV interstitial fluid volume; intracellular fluid volume
IG immature granule; immunoglobulin; insulin and glucose; intergenic; interstitial glucose; intragastric; irritable gut
Ig immunoglobulin
IGA infantile genetic agranulocytosis
IgA immunoglobulin A
IgA1, IgA2 subclasses of immunoglobulin A
IgAGN immunoglobulin A glomerulonephritis
IgAN immunoglobulin A nephropathy
IGC immature germ cell; intragastric cannula
IG-CAM immunoglobulin of cell adhesion molecule
IGCP intraglomerular capillary pressure
IGD idiopathic growth hormone deficiency; Integrated Genome Database; interglobal distance; isolated gonadotropin deficiency
IgD immunoglobulin D
IgD1, IgD2 subclasses of immunoglobulin D
IGDM infant of mother with gestational diabetes mellitus
IGE idiopathic generalized epilepsy; impaired gas exchange
IgE immunoglobulin E
IgE1 subclass of immunoglobulin E
IGF insulin-like growth factor
IGF-I insulin-like growth factor-I
IGFBP insulin-like growth factor binding protein
IGF-I-BP insulin-like growth factor I binding protein
IGFBP-3 IGF-binding protein 3
IGFET insulated gate field effect transistor
IGF-I-KIRA insulin-like growth factor I kinase receptor activation
IGFL integral green fluorescence
IGFR insulin-like growth factor receptor
IGF1R insulin-like growth factor receptor type 1
IgG immunoglobulin G
IgG1, IgG2, IgG3, IgG4 subclasses of immunoglobulin G
IgG-SC immunoglobulin G secreting cells
IGH immunoreactive growth hormone
IgH immunoglobulin heavy chain
IgHC immunoglobulin heavy chain constant region
IGHD immunoglobin delta heavy chain; isolated growth hormone deficiency
IGHE immunoglobulin epsilon heavy chain
IGHV immunoglobulin heavy chain variable region
IGI intelligent graphic interface
IGIF interferon-γ-inducing factor
IGIV immune globulin intravenous
IGKDEL immunoglobulin kappa deleting element
IGL immunoglobulin lambda; immunoglobulin light chain
IGLJ immunoglobulin lambda light chain J
IGLL immunoglobulin lambda-like
IGLLC inferior glenohumeral ligament labral complex
iGluR ionotropic glutamate receptor
IGM Internet Grateful Med
IgM immunoglobulin M
IgM1 subclass of immunoglobulin M
IgMN immunoglobulin M nephropathy
IGNS image-guided neurosurgery
IGO1 immunoglobulin kappa orphan 1
IGOS Image Guided Orthopaedic Surgery [project]
IGP intestinal glycoprotein
IGR immediate generalized reaction; integrated gastrin response
iGrid international grid
IGS image-guided surgery; inappropriate gonadotropin secretion; internal guide sequence
Igs immunoglobulins
IgSC immunoglobulin-secreting cell
IGSF immunoglobulin superfamily
IGSS immuno-gold silver staining
IGT impaired glucose tolerance
IGTT intravenous glucose tolerance test
IGUV Iguape virus
IGV intrathoracic gas volume
IH idiopathic hirsutism; idiopathic hypercalciuria; immediate hypersensitivity; incompletely healed; indirect hemagglutination; industrial hygiene; infantile hydrocephalus; infectious hepatitis; inguinal hernia; inhibiting hormone; in hospital; inner half; inpatient hospital; intermittent heparinization; intimal hyperplasia; intracranial hematoma; iron hematoxylin
IHA idiopathic hyperaldosteronism; indirect hemagglutination; indirect hemagglutination antibody; intrahepatic atresia
IHAC Industrial Health and Advisory Committee
IHAPS interactive health appraisal system
IHBT incompatible hemolytic blood transfusion
IHC idiopathic hemochromatosis; idiopathic hypercalciuria; immunohistochemical [staining assay]; immunohistochemistry; inner hair cell; interactive health communication system; Internet Healthcare Coalition; intrahepatic cholestasis
IHCA individual health care account; isocapnic hyperventilation with cold air
IHCM ichthyosis hystrix, Curth-Macklin [type]
IHCP Institute of Hospital and Community Psychiatry
IHD in-center hemodialysis; intermittent hemodialysis; ischemic heart disease
IHDI ischemic heart disease index
IHDP Infant Health and Development Program
IHDPORT Ischemic Heart Disease Patient Outcomes Research Team
IHD SDP Ischemic Heart Disease Shared Decision-Making Program
IHES idiopathic hypereosinophilic syndrome
IHF Industrial Health Foundation; integration host factor; interhemispheric fissure; International Hospital Foundation
IHGD isolateral human growth deficiency
IHH idiopathic hypogonadotropic hypogonadism; idiopathic hypothalamic hypogonadism; infectious human hepatitis
IHHS idiopathic hyperkinetic heart syndrome
IHI Institute for Healthcare Improvement
IHIS integrated hospital information system
IHL International Homeopathic League
IHM in-hospital malnutrition
IHN integrated health care network
IHO idiopathic hypertrophic osteo-arthropathy
IHOU in-hospital observation unit
IHP idiopathic hypoparathyroidism; idiopathic hypopituitarism; individualized health plan; inositol hexaphosphate; interhospitalization period; inverted hand position
IHPC intrahepatic cholestasis
IHPH intrahepatic portal hypertension
IHPP Intergovernmental Health Project Policy
IHQL index of health-related quality of life
IHR International Health Regulations; intrahepatic resistance; intrinsic heart rate
IHRA isocapnic hyperventilation with room air
IHRB Industrial Health Research Board
IHS idiopathic hypereosinophilic syndrome; inactivated horse serum; Indian Health Service; innovative health care system; integrated health system; International Headache Society; International Health Society; intracranial hypotension syndrome
IHSA iodinated human serum albumin
IHSC immunoreactive human skin collagenase
IHSS idiopathic hypertrophic subaortic stenosis
IHT insulin hypoglycemia test; intravenous histamine test; ipsilateral head turning
I5HT intraplatelet serotonin
IHW International Histocompatibility Workshop
II carcinoma of the subvaginal tissue without involving the pelvic wall [International Federation of Gynecologists and Obstetricians (FIGO) classification]; endometrial carcinoma involving the corpus and cervix but no other tissues [International Federation of Gynecologists and Obstetricians (FIGO) classification]; icterus index; image intensification or intensifier; involvement of two or more lymph nodes on the same side of the diaphragm [Ann Arbor staging system for Hodgkin disease]
I&I illness and injuries
Ii incision inferius
IIA internal iliac artery
IIC ineffective individual coping
IICP increased intracranial pressure
IID independent identically distributed [nucleotides]; insulin-independent diabetes
IIDM insulin-independent diabetes mellitus
IIE idiopathic ineffective erythropoiesis
II_E localized involvement of an extrahepatic organ or site [Ann Arbor staging system for Hodgkin disease]
IIEF International Index of Erectile Function
i-IEL intestinal intraepithelial lymphocyte
IIF immune interferon; indirect immunofluorescence; intracellular ice formation; isolated intraperitoneal fluid
IIFT intraoperative intraarterial fibrinolytic therapy
IIG imagineering interest group; interactive image-guided [surgery]
IIGR ipsilateral instinctive grasp reaction
IIH idiopathic infantile hypercalcemia
IIHD Israeli Ischemic Heart Disease [study]
III endometrial carcinoma extending outside the uterus but not outside the true pelvis [International Federation of Gynecologists and Obstetricians (FIGO) classification]; involvement of two or more lymph node regions on both sides of the diaphragm [Ann Arbor staging system for Hodgkin disease]; vaginal carcinoma extending to pelvic wall [International Federation of Gynecologists and Obstetricians (FIGO) classification]
III_E localized involvement of an extrahepatic organ or site [Ann Arbor staging system for Hodgkin disease]
III-para tertipara
III_S localized involvement of the spleen [Ann Arbor staging system for Hodgkin disease]
III_SE localized involvement of an extrahepatic organ and spleen [Ann Arbor staging system for Hodgkin disease]
IIME Institute of International Medical Education
IIMS Interest in Internal Medicine Scale
IIOP Internet inter object request broker protocol
IIP idiopathic interstitial pneumonia; idiopathic intestinal pseudo-obstruction; increased intracranial pressure
II-para secundipara
I-123 IPPA I-123 Iodo-Phenylpentadecanoic Acid [Viability Multicenter Study]
IIR infinite impulse response; Internet information retrieval
IIS intensive immunosuppression; International Institute of Stress; Internet information server; [Microsoft] Internet Information Service
IIT induction of immune tolerance; ineffective iron turnover; intensive insulin therapy; interactive image tool
IITF Information Infrastructure Task Force
IIUK Intraoperative Intra-Arterial Urokinase [study]
IIVS Institute for In-Vitro Sciences
IJ ileojejunal; internal jugular; intrajejunal; intrajugular
IJCAI International Joint Conference on Artificial Intelligence
IJD inflammatory joint disease
IJP inhibitory junction potential; internal jugular pressure
IJV internal jugular vein
IK immobilized knee; immune body [Ger. Immunekrper]; Infusoria killing [unit]; interstitial keratitis