ATI RN
Pediatric Immunization NCLEX Questions Ricci Questions
Question 1 of 5
Phagocytic and cytotoxic activities; chemotactic factors
Correct Answer: A
Rationale: Monocytes/macrophages are phagocytic and release chemotactic factors.
Question 2 of 5
Which of the following is the correct order of lymphocyte extravasation?
Correct Answer: D
Rationale: Extravasation order: adhesion, arrested adhesion, activation, transmigration.
Question 3 of 5
At what stage of B cell development are auto-reactive cells removed?
Correct Answer: D
Rationale: Auto-reactive B cells are removed during the immature cell stage via negative selection.
Question 4 of 5
Which of the following is the correct order of developmental stages for T cells?
Correct Answer: C
Rationale: T-cell development in the thymus follows DN → DP → SP stages, reflecting the expression of CD4 and CD8.
Question 5 of 5
Where does a mature T cell encounter antigen for the first time?
Correct Answer: D
Rationale: Mature T cells encounter antigens on APCs in secondary lymphoid organs like lymph nodes.