ATI RN
Pediatric Immunization Test Questions Questions
Question 1 of 5
The difference between tolerance and immunity depends upon the maturation status of the antigen presenting dendritic cells. What is the T-cell outcome of an antigen presentation event by a mature dendritic cell?
Correct Answer: C
Rationale: Mature dendritic cells activate T cells by presenting antigens with co-stimulatory signals.
Question 2 of 5
A cell found in the circulation that secretes INF α and INF β is a
Correct Answer: D
Rationale: Plasmacytoid dendritic cells produce large amounts of IFN-α and IFN-β in response to viral infections.
Question 3 of 5
The person in the above question is experiencing a primary infection with the virus. B cells activated in a primary infection secrete which class of antibody first?
Correct Answer: D
Rationale: IgM is the first antibody produced in a primary immune response.
Question 4 of 5
Plasma cells are the end cells of
Correct Answer: B
Rationale: Plasma cells are terminally differentiated B cells that secrete antibodies.
Question 5 of 5
Which of the following molecules triggers the caspase cascade And through which cells
Correct Answer: A
Rationale: Perforin and granzymes from CD8 T cells trigger caspase-mediated apoptosis in target cells.