#march2020mccqe1
A 73-year-old woman steps on a rusty nail while gardening in her back yard. A neighbor drives her to the emergency department, where her wound is cleaned and bandaged. A complete history and review of her medical chart indicates that her vaccinations are not up to date, and she requires one vaccination and a shot of the appropriate immunoglobulin as prophylaxis against infection. What is the mechanism of toxicity of the organism for which she was vaccinated?
(A) ADP-ribosylation of a G protein, increasing chloride secretion
(B) ADP-ribosylation of an elongation factor, causing disrupted protein synthesis
(C) Binding to the MHC II receptor and T-lymphocyte receptor, causing cytokine synthesis
(D) Blocking release of the inhibitory neurotransmitter glycine
(E) Blocking the release of acetylcholine
(F) Lysis of RBCs
(G) Stimulation of guanylate cyclase
A 73-year-old woman steps on a rusty nail while gardening in her back yard. A neighbor drives her to the emergency department, where her wound is cleaned and bandaged. A complete history and review of her medical chart indicates that her vaccinations are not up to date, and she requires one vaccination and a shot of the appropriate immunoglobulin as prophylaxis against infection. What is the mechanism of toxicity of the organism for which she was vaccinated?
(A) ADP-ribosylation of a G protein, increasing chloride secretion
(B) ADP-ribosylation of an elongation factor, causing disrupted protein synthesis
(C) Binding to the MHC II receptor and T-lymphocyte receptor, causing cytokine synthesis
(D) Blocking release of the inhibitory neurotransmitter glycine
(E) Blocking the release of acetylcholine
(F) Lysis of RBCs
(G) Stimulation of guanylate cyclase
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