ATI RN
Pediatric Immunizations NCLEX Questions Questions
Question 1 of 5
What type of cells produce type I interferons (IFN-α and IFN-β)?
Correct Answer: C
Rationale: Plasmacytoid dendritic cells are the primary producers of type I interferons.
Question 2 of 5
Increases marrow production of neutrophils
Correct Answer: C
Rationale: G-CSF stimulates neutrophil production in bone marrow.
Question 3 of 5
Increases vascular permeability
Correct Answer: B
Rationale: Histamine, released by mast cells, increases vascular permeability, aiding immune cell infiltration to the site of infection.
Question 4 of 5
Natural killer cell receptors NKG2/CD94 and killer inhibitory receptors allow for the killing of antibodies in the presence of:
Correct Answer: D
Rationale: NK cells kill when MHC class I is absent or reduced, as inhibitory receptors are not engaged.
Question 5 of 5
Which of the following subunit vaccines is recommended for children but not adults?
Correct Answer: B
Rationale: Hib vaccine is routinely given to children to prevent meningitis, not typically required for adults.