ATI RN
Pediatric Immunity NCLEX Questions Questions
Question 1 of 5
large family of molecules that stimulate leukocyte movement and regulate the migration of leukocytes from the blood to tissues and all of which are 8- to 12kD polypeptides, this definition best describes?
Correct Answer: B
Rationale: Chemokines are small (8-12 kDa) polypeptides that direct leukocyte migration and recruitment during immune responses.
Question 2 of 5
Histamine releasing cell and contributes in hypersensitivity
Correct Answer: C
Rationale: Mast cells release histamine during hypersensitivity reactions like allergies.
Question 3 of 5
Monocytes move from the systemic circulatory system into general connective tissues, where they differentiate into what phagocytic cell type?
Correct Answer: A
Rationale: Monocytes differentiate into macrophages in tissues, functioning as phagocytes.
Question 4 of 5
Pathogen-associated molecular patterns
Correct Answer: A
Rationale: PAMPs are conserved structures on various microorganisms, recognized by innate immunity.
Question 5 of 5
In the classical pathway, which of the following complement complex serve as C3 convertase
Correct Answer: B
Rationale: C4bC2b (often denoted C4b2a in some texts) is the C3 convertase in the classical pathway.