Medical terms - Letter I | MedicalVocabulary.org

I (drug caution code)

Abbreviation on a medication that indicates 'interaction' because the medication may interact adversely with another medication you may have taken or take in the future. While not a part of the historical heritage of…
I(17q)

Symbol for: Isochromosome 17q
Iatr-

Prefix relating to a physician or medicine. An iatrogenic illness is one inadvertently caused by a physician. From the Greek word 'iatros' meaning physician (healer)
Iatrapistic

A lack of faith in doctors. Entirely from the Greek: 'iatr-' indicating a relationship to a physician or medicine + 'a' meaning lack + 'pisteuo' meaning I trust in
Iatric

Relating to medicine or a physician. Iatric systems are medical systems. From the Greek iatrikos (medical), from iatros (physician), from iasthai (to heal)
Iatrics

Due to the action of a physician or a therapy the doctor prescibed. An iatrogenic disease may be inadvertently caused by a physician or surgeon or by a medical or surgical treatment or a diagnostic procedure. Puerperal…
Iatrogenic

Due to the action of a physician or a therapy the doctor prescibed. An iatrogenic disease may be inadvertently caused by a physician or surgeon or by a medical or surgical treatment or a diagnostic procedure. Puerperal…
Iatromelia

Ineffective or negligent medical treatment. From 'iatro-' meaning a relationship to a physician or medicine + the Greek 'meleos' meaning fruitless or vain.
Iatromisia

An intense dislike of doctors. From 'iatro-' indicating a relationship to a physician or medicine + the Greek 'miseo' meaning I hate.
Iatry

International AIDS Vaccine Initiative. A remarkable example of a global not-for-profit organization working to improve world health. IAVI's mission is to speed the search for a vaccine to prevent HIV infection and AIDS…
IAVI

International AIDS Vaccine Initiative. A remarkable example of a global not-for-profit organization working to improve world health. IAVI's mission is to speed the search for a vaccine to prevent HIV infection and AIDS…
IBD (inflammatory bowel disease)

A group of chronic intestinal diseases characterized by inflammation of the bowel -- the large or small intestine. The most common types of inflammatory bowel disease are ulcerative colitis and Crohn's disease. Crohn…
IBS (irritable bowel syndrome)

Irritable bowel syndrome): A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility) characterized by abdominal pain, bloating, mucous in stools, and irregular bowel habits with…
Ibuprofen

Ibuprofen: A non-steroidal anti-inflammatory drug (NSAID) commonly used to treat pain, swelling, and fever. Common brand names for Ibuprofen include Advil, Motrin, and Nuprin.
ICD

Implantable cardiac defibrillator, a device that is put within the body and is designed to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them. Defibrillators continuously monitor the heart…
Ice cream headache

A headache that occurs when one puts ice, a cold food or chilled beverage in the mouth. Ice cream is by far the most frequent offender. The headache occurs regardless of whether or not the individual suffers from other…
Ichthyosis

Dry, rectangular scales on the skin. Like fish scales. From the Greek 'ichthys' meaning fish. Ichthyosis is not one but rather a group of skin disorders characterized by noninflammatory scaling of the skin. Many…
Ichthyosis simplex

Excessively dry skin with scaling. Also called xeroderma. See: Xeroderma. See also: Ichthyosis vulgaris
Ichthyosis vulgaris

A genetic skin disease that is characterized by scaly (fishlike) areas of skin. The first scaly skin problems usually appear after 3 months of age. The palms and soles are often affected. Areas that tend to be spared…
Ichthyosis, spasticity, oligophrenia syndrome

Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease characterized by a triad of clinical findings consisting of ichthyosis (thickened fish-like skin), spastic paraplegia (spasticity of the…
Ichthyosis-keratitis-deafness syndrome

See Keratitis-ichthyosis-deafness syndrome
ICSI

Jaundice. At least one medical dictionary defines icterus as the presence of jaundice seen in the sclera of the eye. This is incorrect. Icterus is synonymous with jaundice. They are one and the same thing. Curiously…
Icterus

Jaundice. At least one medical dictionary defines icterus as the presence of jaundice seen in the sclera of the eye. This is incorrect. Icterus is synonymous with jaundice. They are one and the same thing. Curiously…
ICU

Intensive Care Unit.
ICU psychosis

ICU psychosis: A disorder in which patients in an intensive care unit (ICU) or a similar hospital setting may experience anxiety, become paranoid, hear voices, see things that are not there, become severely disoriented…
ID

See: Yttrium Y 90 ibritumomab tiuxetan.
IDEC-Y2B8 monoclonal antibody

See: Yttrium Y 90 ibritumomab tiuxetan
IDET

Intradiskal electrothermal therapy, a procedure designed to relieve back pain due to damage to the disks between the spine bones. Under local anesthesia and X-ray guidance, a needle is introduced into the disk and a…
Idiocy, amaurotic familial

An outdated term for Tay-Sachs disease (TSD) which is concisely defined by OMIM (Online Mendelian Inheritance in Man) as 'an autosomal recessive, progressive neurodegenerative disorder, which in the classic infantile…
Idiopathic

Of unknown cause. Any disease that is of uncertain or unknown origin may be termed idiopathic. For example, acute idiopathic polyneuritis, diffuse idiopathic skeletal hyperostosis, idiopathic pulmonary fibrosis…
Idiopathic nephrotic syndrome of childhood

See: Minimal change disease
Idiopathic pulmonary arterial hypertension

See: Pulmonary hypertension
Idiopathic pulmonary fibrosis

Scarring throughout the lungs without an identifiable cause. See: Pulmonary fibrosis
Idiopathic sclerosing cholangitis

See: Primary sclerosing cholangitis
Idiopathic scoliosis

A "wastepaper basket" for those cases of immune thrombocytopenic purpura whose cause is still unknown. See: Immune thrombocytopenic purpura.
Idiopathic thrombocytopenic purpura

A 'wastepaper basket' for those cases of immune thrombocytopenic purpura whose cause is still unknown. See: Immune thrombocytopenic purpura
Idiopathy

A disease or medical condition of unknown origin or which has no apparent cause. As in the idiopathy of cancer. From the New Latin idiopathia (primary disease), from the Greek idiopatheia, from idio-, from idios (one's…
Idiot savant

See: Autistic savant. The term 'autistic savant' is preferred to the old term 'idiot savant' as less perjorative and more precise
IFA

Indirect immunofluorescence assay
Ig

Abbreviation for immunoglobulin, a protein produced by plasma cells and lymphocytes. Immunoglobulins are an essential part of the body's immune system which attach to foreign substances, such as bacteria, and assist in…
IgA

Immunoglobulin A, a major class of immunoglobulins found in serum and external body secretions such as saliva, tears, and sweat as well as in the gastrointestinal, respiratory, and genitourinary tracts
IgD

Immunoglobulin D, a class of immunoglobulins found as antibodies on the surface of B cells (B lymphocytes). Almost nothing is known about the normal function of IgD
IgE

Immunoglobulin E, a class of immunoglobulins that includes the antibodies elicited by an allergic substance (allergen). A person who has an allergy usually has elevated blood levels of IgE. IgE antibodies attack and…
IgG

Immunoglobulin G, a major class of immunoglobulins found in the blood, including many of the most common antibodies circulating in the blood. Also known as gamma globulin
IgM

Immunoglobulin M, a major class of immunoglobulins. IgM includes the antibodies that are usually produced first in an immune response and are later replaced by other types of antibodies
IGT

The Indian Health Service, a part of the US Public Health Service within the US Department of Health and Human Services, that is responsible for providing federal health services to American Indians and Alaska Natives…
IHS

Interleukin-1.
IL-1

Interleukin-1
IL-10

Interleukin-10
IL-2

Interleukin-2