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Transcript
PHA 321 - Biosciences II Quiz 9c - March 24, 2004 1. Patch tests are used to detect A) contact hypersensitivity. B) hives. C) D) serum sickness. immune complexes. 2. Delayed hypersensitivity is also known as ___________ hypersensitivity. A) type II B) type IV C) type I D) type V E) type III 3. A lack of T cells makes one more vulnerable to intracellular parasites. A) True B) False 4. Which of the following is associated with contact dermatitis? A) poison ivy B) latex C) tuberculin skin test D) hay fever E) a, b and c 5. The redness and induration found after a tuberculin skin test involve the action of A) complement. B) sensitized T cells. C) basophil cells. D) IgE. 6. Which of the following disease states is not among those caused by immune complexes? A) hay fever. B) glomerulonephritis. C) serum sickness. D) farmer's lung. 7. Arthus reactions and serum sickness are examples of _________ hypersensitivity. A) type II B) type V C) type IV D) type I E) type III 8. Delayed type hypersensitivity primarily involves A) T cells. B) erythrocytes. C) mast cells. D) B cells. 9. Immune complexes A) are usually cleared rapidly from the body. B) bind to Fc receptors on cells. C) are involved in Type III hypersensitivity reactions. D) consist of antigen-antibody bound together. E) all of the above 10. Delayed hypersensitivity reactions in the skin A) require complement activation B) show induration because of an influx of sensitized T cells and macrophages C) peak at 4 to six hours after exposure to antigen D) depend on the activities of the Fc portion of antibodies E) are characterized by a wheal and flare reaction Page 1