Research Consent Glossary

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I

Iatrogenic - Caused by a physician or by treatment

Iatrology - The science of medicine

Icterus - Too much bile in the blood causing a yellow color to the skin, gums, eye, and other tissues

Idiopathic - Of unknown cause

Idiosyncrasy - Rare side effect of a drug; unusual reaction of a person to a drug

Ide - Investigational device exemption, the license to test an unapproved new medical device

Idiopathic - Of unknown cause

Ileocecal - Having to do with the ileum and the cecum

Ileum - Third and last part of the small intestine

Ileus - Blockage of the intestines

Iliac Regions - Areas to the right and left below the navel

Iliofemoral - Having to do with the hip and thigh bones

Ilium - Wing-shaped upper part of the hip bone

IM - See intramuscular (1M) injection

Immune Globulins - Proteins that help protect the body from infection and foreign matter

Immune System - The cells and substances that protect the body from infection and foreign matter

Immunodeficiency - Weakness of the immune system

Immunosuppressive - Drug, which suppresses the body's immune response, used in transplantation and diseases, caused by disordered immunity

Immunotherapy - Giving of drugs to help the body's immune response; used in transplantation and diseases caused by disordered immunity

Impedance - Plethysmography - Test used to find blood clots

Impetigo - Skin infection

Impotent - Not able to have or to keep an erection during sexual intercourse

Inactivating - Making it or them not active

Incidence - How often it happens

Incontinence - Not able to control bladder or bowel actions

IND - Investigational new drug, the license to test an unapproved new drug

Induction Phase - Beginning phase or stage of a treatment

Induration - Hard spot

Infarct - Death of tissue because of lack of blood supply

Inferior - Toward the lower part of the body

Inflammation - Swelling, redness, and pain in tissues caused by injury or damage

Influenza - The flu

Infrequent - A few, not often

Infused - Put into a vein

Infusion with gravity- Placing a liquid substance into a vein by letting it flow in

Inhalant - Substance given through the nose or mouth to reach the lungs

Inspect - Look at, see

Insulin - The hormone that controls blood sugar levels

Interictal - Happening between seizures

Intermittent Claudication - Pain and weakness in the legs when walking that gets worse until walking is impossible and then goes away after a rest

Intervertebral - Spaces between the bones of the spine

Intervertebral Disks - Pads found between each ring (bone) in the spine

Intracavitary - Injection of a substance into a body cavity Injection

Intracoronary - Injection of medicine to dissolve a blood clot in an artery Thrombolytic Therapy of the heart

Intracranial - Inside the skull

Intradermal - Within the skin

Intradermal Injection - Injection of a substance into the skin

Inradermal Tests - Allergy test performed by injecting allergy-causing substances underneath the skin to see if they cause a reaction

Intramuscular (1M) - Injection of a substance into a muscle (e.g., upper arm or Injection backside

Intraocular - Within the eye

Intrathecal - Injection Injection of a substance into the space surrounding the spinal cord (i.e., spinal canal)

Intravenous (IV) - Injection of a substance into a vein Injection

Intravenous Pyelogram - X-ray of the kidneys and ureters using dye that is injected into the blood

Intubate - The placement of a tube into the airway

Intussusception - Telescoping of the intestine into itself

Invasion Procedure - Puncture, opening or cutting of the skin

Inversion - Turning inward

Investigator - Study doctor

Involved in - Play a part in

Iridectomy - Removal of the iris

Iridoplegia - Paralysis of the iris

Iris - Part of the eye that surrounds the pupil and gives the eye its color

Iritis - Inflammation of the iris

Irritable Bowel - Bowel disorder in which there is pain and diarrhea or constipation

Ischemia - Decreased oxygen in a tissue (usually because of decreased

Ischium - Lower part of the pelvic bone, the part you sit on

Islets of Langerhans - Tissue in the pancreas that makes and discharges insulin and other hormones

Isthmus - Thin strip of tissue that joins two parts of the body

IV - See intravenous (IV) injection