Definitions I Flashcards
iatrogenic illness
An unfavorable response due to prescribed medical treatment. For example, severe burns resulting from radiation therapy are iatrogenic.
ichthyosis
A group of hereditary disorders characterized by dry, thickened, and scaly skin. These conditions are caused by the slowing of the skin?s natural shedding process or by a rapid increase in the production of the skin?s cells.
idiopathic disorder
An illness without known cause. Idiopathic means without cause.
idiosyncratic reaction
An unexpected reaction to a drug that is peculiar to the individual.
ileal conduit
The use of a small piece of intestine to convey urine to the ureters and to a stoma in the abdomen. Also known as ileostomy.
ileectomy
The surgical removal of the ileum.
Ileostomy
The surgical creation of an artificial excretory opening between the ileum, at the ileum, at the end of the small intestine, and the outside of the abdominal wall.
ileus
The partial or complete blockage of the small or large intestine. It is caused by the stopping of the normal peristalsis of this area of the intestine. Symptoms of ileus can include severe pain, cramping, abdominal distention, vomiting, and the failure to pass gas or stools. Also known as paralytic ileus.
iliotibial band syndrome (ITBS)
An overuse injury. The iliotibial band runs from the hip bone, diagonally across the leg to the tibia. ITBS is caused by this band rubbing against bone, often in the area of the knee.
immobilization
The act of holding, suturing, or fastening the bone in a fixed position with strapping or a cast.
immunity
The state of being resistant to a specific disease. This resistance can be present naturally or it can be acquired.
immunodeficiency disorder
An immunodeficiency disorder occurs when the immune response is compromised. Compromised means weakened or not functioning properly.
immunoglobulins
Immunoglobulins bind with specific antigens in the antigen-antibody response. The five primary types of immunoglobulins, which are secreted by plasma cells, are also known as antibodies.
immunosuppressant
A suppressant that prevents or reduces the body?s normal immune response. This medication is administered to prevent the rejection of donor tissue and to depress autoimmune disorders.
immunosuppression
Treatment to repress or interfere with the ability of the immune system to respond to stimulation by antigens.
immunotherapy
A disease treatment that involves either stimulating or repressing the immune response. In the treatment of cancers, immunotherapy is used to stimulate the immune response to fight the malignancy. Stimulate means to cause greater activity. In the treatment of allergies, immunotherapy is used to repress the body?s sensitivity to a particular allergen. Repress means to decrease or stop a normal response. This treatment is also known as allergy desensitization. Immunotherapy is also called biological therapy.
impacted cerumen
An accumulation of earwax that forms a solid mass by adhering to the walls of the external auditory canal. Impacted means lodged or wedged firmly in place.
impetigo
A highly contagious bacterial skin infection that commonly occurs in children. This condition is characterized by isolated pustules that become crusted and rupture.
impingement syndrome
Impingement syndrome occurs when inflamed and swollen tendons are caught in the narrow space between the bones within the shoulder joint. A common sign of impingement syndrome is discomfort when raising your arm above your head.
impulse control disorders
A group of psychiatric disorders characterized by a failure to resist an impulse despite potential negative consequences. This disorder includes compulsive shopping and gambling.
incision
A cut made with a surgical instrument.
incontinence
The inability to control the excretion of urine, feces, or both.
incubator
An apparatus for maintaining an environment of controlled temperature, humidity and oxygen concentration for a premature or ill newborn.
indirect contact transmission
The spread of a disease through contact with blood or other body fluids that are contaminated with blood. Examples include human immunodeficiency virus (HIV), hepatitis B, and most sexually transmitted diseases (STDs).
indwelling catheter
An indwelling catheter remains inside the body for a prolonged time based on need. Indwelling means residing within. This can be either a urethral or a suprapubic catheter.
infection
An infection is the invasion of the body by a pathogenic (disease-producing) organism. The infection can remain localized (near the point of entry) or can be systemic (affecting the entire body). Signs and symptoms of infection include malaise, chills and fever, redness, heat and swelling, or exudate from a wound.
infectious disease
An illness caused by living pathogenic organisms such as bacteria and viruses.