chapter 15 Flashcards
What is an allergy?
Hypersensitive reaction to an ordinarily harmless substance, the majority of which are environmental.
What is anaphylaxis?
A more severe form of allergic reaction
What is allergic reaction I?
Immediate hypersensitivity caused by immunoglobin E and is also referred to as a common allergy.
What is type II allergenic reaction?
They are catholic in nature and cause cell death.
What is type lll allergic reaction?
A body is exposed to an antigen and the proteins of the body attack the antigen causing a cascading effect to help destroy the invading organism.
Anaphylaxis
Life-threatening hypersensitive reaction to a previously encountered antigen
Cardiovascular collapse
Failure of the circulatory system
Cytolytic
Destruction of the living cell
Antigen
substance that has the ability to provoke an immune response
Contact dermatitis
Condition of itching, redness, and swelling possibly with blister formation caused by exposure of the skin to an allergen
Erythema
Reddened skin
Pruritus
Itching
Eczema
Skin rash characterized by itching, blistering, oozing, and scaling of the skin
Sensitizing dose
First exposure to the antigen
Antibodies
Immunoglobulin, protein secreted in response to an antigen
Mast cells
White blood cell that releases chemical mediators during an inflammatory response
Basophils
Rare white blood cells
Challenge dose
Second exposure to an allergen that produces the allergic response
Degranulation
Rupture of the cell surface allowing the cell contents to spill out
Angiodema
Painless swelling seen in an allergic reaction
Conjunctivitis
Inflammation of the conjunctiva
Beta 2 receptors
Adrenergic cellular receptor within the sympathetic autonomic nervous system (SANS) that when stimulated causes smooth muscle vasoconstriction, and bronchoconstriction
Rhinitis
Inflammation of the mucous membranes of the nose because of the effect of histamine on the mucosa of the nasal passages
Biphasic
Having two stages
