Drug Therapy to Decrease Histamine Effects and Allergic Response Ch 30

Question 1

Anaphylactic reactions

Answer 1

severe, whole-body reaction after sensitization to an allergen causing a severe allergic response

Question 2

Anaphylactoid reactions

Answer 2

anaphylaxis-like reaction to a substance without development of IgE antibody that may occur on first exposure to the causative agent

Question 3

Antihistamines

Answer 3

drugs that antagonize the action of histamine; commonly the H1 receptor antagonists

Question 4

Histamine

Answer 4

first chemical mediator released in immune and inflammatory responses found mainly in mast cells surrounding blood vessels

Question 5

Hypersensitivity

Answer 5

allergic reactions that are exaggerated responses by the immune system; produce tissue injury and may cause serious disease

Question 6

Serum sickness

Answer 6

type III hypersensitive response is an IgG- or IgM-mediated reaction characterized by formation of antigen–antibody complexes that induce an acute inflammatory reaction in the tissues.