ATI RN
Immune System NCLEX Questions Questions
Question 1 of 5
The thoracic duct drains lymph from all EXCEPT:
Correct Answer: C
Rationale: The thoracic duct drains all but the right arm , which goes to the right lymphatic duct.
Question 2 of 5
What is the term for excessive lymph accumulation in tissues?
Correct Answer: D
Rationale: Lymphedema is lymph accumulation; lymphadenopathy is node swelling, lymphangitis is inflammation.
Question 3 of 5
Which cytokine promotes inflammation?
Correct Answer: B
Rationale: TNF-alpha drives inflammation; IL-10 suppresses, IL-4 aids allergies, IL-2 boosts T cells.
Question 4 of 5
Which cells release perforins to kill targets?
Correct Answer: B
Rationale: Cytotoxic T cells use perforins; NK cells also do, but B cells make antibodies, macrophages phagocytose.
Question 5 of 5
Which cells are key to the primary immune response?
Correct Answer: B
Rationale: Naïve lymphocytes respond first; memory is secondary, macrophages and neutrophils are innate.