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Peds - Chapter 27
Vocab
20
Nursing
Undergraduate 2
07/29/2013

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Term
acquired immunity
Definition
Humoral and cell-mediated immunity that is not fully developed until a child is about six years of age.
Term
allergens
Definition
An antigen capable of inducing hypersensitivity.
Term
allergy
Definition
An abnormal immune response (hypersensitivity) to a substance (allergen).
Term
antibodies
Definition
Proteins capable of responding to specific infectious agents; proteins capable of reacting to a specific antigen.
Term
antigens
Definition
A foreign substance that triggers an immune system response.
Term
atopy
Definition
A hereditary allergic tendency.
Term
autoimmune disorders
Definition
When the immune system produces antibodies against cells of the body.
Term
cytokines
Definition
Proteins that carry messages for immune system function.
Term
food allergy
Definition
An IgE-mediated reaction that is potentially systemic, characteristically rapid in onset, and may be manifested as swelling of the lips, mouth, uvula, or glottis, generalized urticaria, and, in severe reactions, anaphylaxis."
Term
graft-versus-host disease
Definition
A series of immunologic responses mounted by the host of a transplanted organ with the purpose of destroying the transplant cells.
Term
** hypersensitivity response
Definition
An overreaction of the immune system, responsible for allergic reactions. HypersplenismĂŠA syndrome characterized by splenomegaly and blood cell deficiencies.
Term
immunodeficiency
Definition
A state of the immune system in which it cannot cope effectively with foreign antigens.
Term
immunoglobulins
Definition
A protein that functions as an antibody, responsible for humoral immunity.
Term
natural immunity
Definition
Natural antibodies passed from mother to the newborn.
Term
opportunistic infections
Definition
An infection that is often caused by normally nonpathogenic organisms in persons who lack normal immunity.
Term
primary immune response
Definition
The process in which B lymphocytes produce antibodies specific to a particular antigen on first exposure.
Term
primary immunodeficiency
Definition
Congenital immunodeficiency.
Term
secondary immune response
Definition
The body's response to an antigen at any time other than the initial exposure.
Term
secondary immunodeficiency
Definition
Acquired immunodeficiency.
Term
vertical transmission
Definition
The passage of disease from the mother to the fetus during the period of pregnancy.
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