ATI RN
Pediatric Immunity NCLEX Questions Questions
Question 1 of 5
Delayed separation of the umbilical cord after birth suggests which type of immune dysfunction?
Correct Answer: D
Rationale: Delayed umbilical cord separation is a hallmark of phagocyte defects, particularly leukocyte adhesion deficiency (LAD), due to impaired neutrophil migration.
Question 2 of 5
Pancreatic insufficiency, metaphyseal chondrodysplasia, autosomal recessive inheritance, defective chemotaxis, and neutropenia are features of
Correct Answer: D
Rationale: Shwachman-Diamond syndrome includes pancreatic insufficiency, skeletal abnormalities, and neutropenia with defective chemotaxis.
Question 3 of 5
Wrong about neutrophils
Correct Answer: C
Rationale: Neutrophils are polymorphonuclear leukocytes, not mononuclear cells like monocytes/macrophages, so they are not part of the mononuclear phagocytic system.
Question 4 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 5 of 5
which of the following is a transcriptional factor for immune genes
Correct Answer: C
Rationale: NF-κB is a key transcription factor regulating immune gene expression, activated downstream of receptors like TLRs.