Ileostomy   
A surgical procedure performed to create an opening in the ileum (the lower part of the small intestine) for the elimination of digestive wastes when the colon is removed.

Imagery   
A technique that uses visualization for the purposes of healing.

Immunity (Immune system)   
The body’s ability to fight infections and disease.

Immunosuppressant   
An agent that diminishes or prevents the immune response.

Immunosuppression   
Weakening of the immune systems causing a lowered ability to fight infection and disease.

Immunotherapy   
The artificial stimulation of the body’s immune system to treat or fight disease.

Incision   
A wound made by cutting with a sharp instrument for the purpose of performing an operation.

Infection   
Inflammation in body tissue caused by microorganisms.

Infiltration   
The leaking of fluid or medicines into tissues, which can cause swelling.

Infuse-a-Port (Mediport)   
A small device containing a thin catheter that is generally implanted under the skin for administration of drugs and nutrients.

Infusion   
The delivery of fluids or medications into the bloodstream over a period of time.

Infusion pump   
A device that delivers measured amounts of fluids or medications into the bloodstream over a period of time.

Injection   
Pushing a medication into the body with the use of a syringe and needle.

Institutional Review Board    (IRB)
A group of people who review research studies to protect your rights.

Integrative medicine   
A term for the combined use of mainstream medical techniques with alternative medicine.

Interferon   
A natural chemical released by the body in response to viral infections. Interferon can be artificially produced and used as a form of immunotherapy.

Interleukin   
A natural or artificially produced chemical released by the body.

Interventional radiologist   
A specialist trained to perform procedures, such as biopsies, using imaging equipment such x-rays.

Intramuscular    (IM)
Into the muscle.

Intravenous   
Administration of medication or fluid to a patient by introducing it through a vein.

Invasive   
Growing into and destroying normal tissues.