ATI RN
Pediatric Immunization NCLEX Questions Quizlet Questions
Question 1 of 5
A 9-year-old boy with acute lymphoblastic leukemia on chemotherapy, presented with fever, aphthous stomatitis, and fatigue for the last 5 days. His absolute neutrophil count (ANC) was 450/μL and hemoglobin level was 10 gm/dl. The NEXT appropriate therapeutic measure is
Correct Answer: D
Rationale: Severe neutropenia (ANC <500/μL) with fever requires immediate broad-spectrum antibiotics to prevent sepsis, a common complication in chemotherapy patients.
Question 2 of 5
Which of the following immune system components would NOT recognize a macromolecule epitope (binding site)?
Correct Answer: A
Rationale: Phagocytes engulf pathogens nonspecifically and do not recognize specific epitopes, unlike T and B lymphocytes or antibodies which bind specific antigenic sites.
Question 3 of 5
Which of the following components of the innate immune system involves cytokines produced by macrophages, which are produced during infection?
Correct Answer: D
Rationale: Interferons are cytokines produced by macrophages and other cells during infection to combat viruses, a key innate response.
Question 4 of 5
Tissue mast cells
Correct Answer: D
Rationale: Tissue mast cells release histamine and mediators during inflammation or allergic responses, not phagocytosis or lysis.
Question 5 of 5
Recognition of antigen
Correct Answer: A
Rationale: The cognitive phase is the initial recognition of antigen by immune receptors.