821. Platelet activating factor (PAF) causes:
A. Bronchodilation
B. Vasoconstriction at low concentration
C. Complement activation
D. Enhanced white cell chemotaxis
E. All of the above

822. IL-1 does the following except:
A. Increase acute phase protein
B. Enhance anticoagulant activity
C. Induce fever
D. Increase IL-1, IL-6, IL-8 & PDGF
E. Stimulate fibroblast proliferation

823. NO (EDRF) causes:
A. Vasoconstriction
B. Platelet aggregation
C. Free radical tissue damage
D. Chemotaxis
E. All of the above

824. The following is an example of chronic inflammation:
A. Type 1 Hypersensitivity reaction
B. Type 2 Hypersensitivity reaction
C. Type 3 Hypersensitivity reaction
D. Type 4 Hypersensitivity reaction
E. All of the above

825. Mononuclear phagocyte system include:
A. Blood monocyte
B. Macrophage
C. Sinus histiocyte
D. Kuffer cells
E. All of the above

826. Half-life of blood monocytes is about:
A. 1 day
B. 1 week
C. 1 month
D. 3 month
E. 6 month

827. In chronic inflammation, monocyte-macrophage become the predominant cell type within:
A. 24 hours
B. 48 hours
C. 72 hours
D. 96 hours
E. 1 week

828. The following activate macrophage:
A. Bacterial exotoxins
B. Monokine
C. Interferon y
D. All of the above
E. None of the above

829. Which of the following statement is correct?
A. Fibrosis occurs only in non-regenerate tissues.
B. Healing begin after acute inflammation settles.
C. All granuloma has central caseous necrosis.
D. Interferon y is a chief cytokine in granulomatous inflammation.
E. None of the above

830. Favored sites of implantation of blood borne organisms include:
A. Heart valves
B. Kidneys
C. Joints
D. Meninges
E. All of the above

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