Which of the Following Is Not Involved in the Pathogenesis

question 45

Multiple Choice

Which of the following is not involved in the pathogenesis of RMSF?

• A) The pathogen releases an A-B toxin that attaches to receptors on TH cell cytoplasmic membranes, leading to destruction of those cells.
• B) Endotoxin released into the bloodstream from the rickettsial cell walls results in systemic inflammation.
• C) Disseminated intravascular coagulation that leads to organ damage may occur following release of endotoxin into the bloodstream.
• D) Host cells rupture following damage caused by bacterial cells propelling themselves from one cell to another.
• E) Vasculitis leads to clotting and small areas of necrosis, causing a hemorrhagic skin rash and damaging tissue in the brain, heart, kidneys, and other organs.

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Definitions:

External Validity

The extent to which the results of a study can be generalized to other situations and to other people outside of the experimental setting.

Construct Validity

The degree to which a test or instrument measures the theoretical construct or psychological concept it intends to measure.

Population

The total number of people under consideration.

Sample

A subset of individuals from a larger population, selected for participation in a research study, meant to represent the larger group.