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Which types of antibodies are capable of placental transfer? a) IgM b) IgG c) IgA d) IgD
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B
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Which of the following is an accurate statement about monoclonal antibodies? a) They are antibodies engineered to bind to a single specific cell. b) They are purified antibodies cloned from a single cell c) They are used to classify & ID specific cellular membrane characteristics d) All of the above
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D
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The principle type of leukocyte in the process of phagocytosis is the: a) eosinophil b) basophil c) monocyte d) neutrophil
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D
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Thehost defenst fxns of monocytes-macrophages includes: a) antigen presentation b) phagocytosis c) secretion of biologically active molecules d) all of the above
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D
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The acute phase reactant that responds the fastest & is the most sensitive indicator of acute inflammation is: a) complement b) ceruloplasmin c) C-reactive protein d) haptoglobin
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C
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The primary or central lymphoid organs in humans are the: a) Bursa of Fabricius & thymus b) lymph nodes & thymus c) bone marrow & thymus d) lymph nodes & spleen
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C
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All of the following are fsns of T cells EXCEPT: a) mediation of delayed hypersensitivity rxns b) mediation of cytologic rxns c) regulation of the immune system d) synthesis of antibody
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D
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The major clinical manifestation of a B cell deficiency is: a) impaired phagocytosis b) diminished complement levels c) increased susceptibility to bacterial infections d) increased susceptibility to parasitic infections
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C
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The complement system is: a) a heat labile series of plasma proteins b) composed of many proteinases c) composed of two interrelated pathways d) all of the above
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D
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Arrange the three stages of the classic complement pathway in their correct sequence. Use letters a, b & c.
Enzymatic activation
Membrane attack
Recognition
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B
C A |
Which of the following is not a component of the complement membrane attack complex: a) C3d b) C6 c) C7 d) C8
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A
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Select the appropriate pathway response using the following choices A. classic pathway B. alternate pathway c. both A & B
activated by antigen-antibody complexes
generates a C3 convertase
activated by microbial & mamalian cell surfaces
terminates in a membrane attack complex
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A
C
B
C
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An activity assoc. w/ interferon is: a) enhanced phagocytosis b) enhances expression of specific genes c) promotes complement-mediated cytolysis d) retards bacterial multiplication
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B
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HBV & HIV may be directly transmitted in the occupational setting by all of the following EXCEPT: a) parenteral incoluation w/ contaminated blood b) exposure of skin to contaminated blood or certain body fluids c) exposure of mucous membranes to contaminated blood or certain body fluids d) sharing bathroom facilities w/ an HIV-pos person
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D
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Diluted bleach for disinfecting work surfaces, equipment, & spills should be prepared daily by preparing a ___ dilution (use a-d) of household bleach. This dilution requires ___ mL of bleach diluted to 100 mL w/ H2O. (use e-h)
a) 1:5 b) 1:10 c) 1:20 d) 1:100
e) 1 f) 10 g) 25 h) 50
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B & F
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