ATI RN
Ricci Maternity and Pediatrics NCLEX Question Immunization Questions
Question 1 of 5
Proliferation of cells with matching receptors
Correct Answer: B
Rationale: The activation phase involves clonal expansion of lymphocytes with receptors matching the antigen.
Question 2 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 3 of 5
Gamma (γ) globulin serum fraction contains predominantly which immunoglobulin?
Correct Answer: D
Rationale: IgG is the predominant immunoglobulin in the gamma globulin fraction, making up most serum antibodies.
Question 4 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 5 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.