ATI RN
Pediatric Immunization NCLEX Questions Quizlet Questions
Question 1 of 5
Can transfer across the placental (maternal protection)
Correct Answer: A
Rationale: IgG crosses the placenta to provide maternal immunity to the fetus.
Question 2 of 5
Which of the following is only contained in heavy chains and not in light chains?
Correct Answer: C
Rationale: The Diversity (D) segment is unique to heavy chains, contributing to antibody diversity, and is not present in light chains.
Question 3 of 5
Production of secreted antibodies (pAs site) involves a chain of amino acids with a stretch of charged (versus non charged) amino acids at the terminus, in comparison to membrane bound antibody production (pAm site).
Correct Answer: B
Rationale: Secreted antibodies have a shorter, charged COOH terminus compared to the longer, hydrophobic terminus of membrane-bound antibodies.
Question 4 of 5
Which of the following TCR genetic chains contains V and J segments, similar to genes for immunoglobulin kappa and lambda light chains?
Correct Answer: D
Rationale: Gamma (γ) and alpha (α) chains contain V and J segments, analogous to light chain genes.
Question 5 of 5
Which of the following molecules is necessary (not accessory) for antigen recognition and T cell activation?
Correct Answer: B
Rationale: CD3 is essential for TCR signaling and T cell activation, unlike the accessory roles of CD4 and CD8.