ATI RN
NCLEX Pediatric Immunization Questions Questions
Question 1 of 5
Which of the following diseases occurs with the absence of a thymus?
Correct Answer: A
Rationale: DiGeorge's syndrome is characterized by thymic aplasia, impairing T cell development.
Question 2 of 5
A patient presents at 3-years-old for a follow-up visit. At age 6-months, the patient had a delayed onset of synthesis of an immunoglobulin. At this visit, the mother reports that the recurrent respiratory infections have stopped due to antibiotics and globulin replacement. Which of the following was the most likely for this patient?
Correct Answer: A
Rationale: Transient hypogammaglobulinemia of infancy involves delayed IgG synthesis, resolving with age and supportive care.
Question 3 of 5
What structural feature is uniquely found on IgA in breast milk and not found on serum IgM?
Correct Answer: D
Rationale: The secretory piece (or secretory component) is unique to secretory IgA, such as that found in breast milk, and protects it from degradation in mucosal environments. Serum IgM lacks this feature.
Question 4 of 5
X-linked agammaglobulinemia results from a mutation in?
Correct Answer: D
Rationale: X-linked agammaglobulinemia is caused by mutations in the Bruton's tyrosine kinase (BTK) gene, impairing B-cell development.
Question 5 of 5
Rhesus D hemolytic disease of the newborn is classified as...?
Correct Answer: B
Rationale: Rhesus D hemolytic disease is a Type II hypersensitivity reaction, involving antibody-mediated destruction of red blood cells.