ATI RN
Pediatric Immunity NCLEX Questions Questions
Question 1 of 5
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 2 of 5
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.
Question 3 of 5
Persons with helminth infections mount immunologic responses that involve IgE and eosinophils. Which two cytokines are most important for these responses to occur?
Correct Answer: B
Rationale: IL-4 promotes IgE production, and IL-5 enhances eosinophil development and activation, both critical for immune responses against helminths.
Question 4 of 5
Mutations in the gammac chain of the receptors for IL-2, 4, 7, 9 and 15 lead to?
Correct Answer: D
Rationale: Mutations in the common gamma chain (γc) disrupt signaling for multiple interleukins, causing severe combined immunodeficiency (SCID).
Question 5 of 5
When a human pathogen is repeatedly grown and passaged in cells of a different species and then used for vaccination purposes, the resulting vaccine is referred to as a/an...?
Correct Answer: D
Rationale: Passaging a pathogen in a different species attenuates it, creating a live attenuated vaccine, as seen with some viral vaccines.