ATI RN
Pediatric Immunity NCLEX Questions Questions
Question 1 of 4
Natural killer (NK) cells are excellent killers of cells infected by some They also have an additional role of stimulating the immune response.
Correct Answer: B
Rationale: NK cells target virus-infected cells and stimulate the adaptive immune response via cytokine production.
Question 2 of 4
Which of the following diseases affects mature T cells?
Correct Answer: D
Rationale: BLS involves defective MHC expression, preventing mature T cell recognition of antigens.
Question 3 of 4
A young patient presents with severe infections from encapsulated bacteria and collagen vascular disease. Lab work confirms a diagnosis via CH50 and AP50. Which of the following is the most likely?
Correct Answer: D
Rationale: C3 deficiency impairs opsonization, leading to infections with encapsulated bacteria and immune complex diseases.
Question 4 of 4
A patient presents with symptoms similar to DiGeorge's syndrome. It is determined that the patient's TH cells are unable to develop. Which of the following is the most likely?
Correct Answer: C
Rationale: Bare lymphocyte syndrome prevents TH cell development due to absent MHC class II expression.