ATI RN
ATI RN Test Bank
Immune System NCLEX Questions Questions
Question 1 of 5
Cytotoxic T-cells recognize antigens combined with
Correct Answer: C
Rationale: Cytotoxic T cells (CD8+) recognize antigens on MHC-I, targeting infected cells.
Question 2 of 5
Which of the following statements about lymphatic vessels is accurate?
Correct Answer: D
Rationale: Lymphatic vessels carry lymph toward the heart, aided by muscle movement.
Question 3 of 5
Interferons are
Correct Answer: A
Rationale: Interferons are cytokines that inhibit viral replication.
Question 4 of 5
Which of the following is NOT a chemical barrier that prevents infection?
Correct Answer: B
Rationale: Mucous membranes are physical, not chemical barriers.
Question 5 of 5
Identify the function of perforins.
Correct Answer: C
Rationale: Perforins from cytotoxic T cells drill holes in target membranes.