ATI RN
Ricci Maternity and Pediatrics NCLEX Question Immunization Questions
Question 1 of 5
Which of the following is NOT true about MHC molecules but true about B and T cells?
Correct Answer: D
Rationale: B and T cells express unique receptors via somatic rearrangement, unlike MHC molecules which are uniform per individual cell.
Question 2 of 5
Predominant in the primary (early) immune response
Correct Answer: C
Rationale: IgM is the first antibody produced in a primary immune response, before class switching to IgG.
Question 3 of 5
Which of the following best describes cross-reactivity?
Correct Answer: B
Rationale: Cross-reactivity occurs when one antibody binds multiple similar antigens due to shared epitopes.
Question 4 of 5
Which of the following uses protein antigens separated by molecular weight using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)?
Correct Answer: D
Rationale: Western blotting uses SDS-PAGE to separate proteins by molecular weight before antigen detection.
Question 5 of 5
If alternative processing uses the first polyadenylation site, then what type of heavy chain mRNA is derived?
Correct Answer: D
Rationale: Using the first polyadenylation site results in μ (mu) heavy chain mRNA, encoding IgM.