ATI RN
Ricci Maternity and Pediatrics NCLEX Question Immunization Questions
Question 1 of 5
A 3-year-old boy presented with recurrent attacks of pneumonia and otitis media since the 1st birthday. Your diagnosis is X-linked agammaglobulinemia. Of the following, the MOST likely offending organism is
Correct Answer: D
Rationale: X-linked agammaglobulinemia (Bruton's) impairs antibody production, making encapsulated bacteria like Streptococcus pneumoniae a common cause of infections like pneumonia and otitis media.
Question 2 of 5
All the following drugs can induce neutropenia EXCEPT
Correct Answer: B
Rationale: Tetracycline is not commonly associated with neutropenia, unlike the others, which can suppress bone marrow function.
Question 3 of 5
The MOST common pathogen in chronic granulomatous disease (CGD) is
Correct Answer: A
Rationale: Staphylococcus aureus is the most common pathogen in CGD, causing abscesses due to impaired oxidative killing by phagocytes.
Question 4 of 5
Which of the following mediates an early response to viral infections by the innate immune system?
Correct Answer: D
Rationale: Interferons are cytokines produced early in viral infections by the innate immune system to inhibit viral replication and activate immune cells, unlike the other options which are either adaptive (lymphocytes, vaccines) or less specific to viruses (complement).
Question 5 of 5
Phagocytes ingest particular matter into cells for degradation. Which of the following is NOT considered a phagocyte?
Correct Answer: D
Rationale: Lymphocytes (B and T cells) are not phagocytic; they mediate adaptive immunity, unlike macrophages, neutrophils, and eosinophils which engulf pathogens.