ATI RN
NCLEX Pediatric Immunization Questions Questions
Question 1 of 5
Evaluations of immune function should be initiated for otherwise healthy children with which of the following infections?
Correct Answer: B
Rationale: Life-threatening bacterial infections (e.g., sepsis, meningitis) warrant immune evaluation due to their severity and potential to indicate underlying immunodeficiency, unlike common colds or isolated serious infections.
Question 2 of 5
The major components of host defense include anatomic barriers and the innate and adaptive immune systems. The adaptive immune system is made up of
Correct Answer: A
Rationale: The adaptive immune system specifically involves T and B lymphocytes, which are responsible for cell-mediated and humoral immunity, respectively.
Question 3 of 5
A 15-month-old child presented with repeated skin and pulmonary infections started shortly after birth, his blood film showed severe neutropenia with impressive monocytosis, he is the third sibling of a first cousin healthy parents, the second sibling had the same problem and died due to acute myeloid leukemia. Of the following, the MOST likely diagnosis is
Correct Answer: B
Rationale: Kostmann syndrome (severe congenital neutropenia) presents with severe neutropenia, monocytosis, and leukemia risk, often autosomal recessive.
Question 4 of 5
A 7-year-old child presented with severe stridor and abdominal pain, he gives history of recurrent episodes of nonpruritic edema lasting 48 to 72 hours, which usually triggered by stress, or anxiety. Of the following, the MOST effective treatment is
Correct Answer: A
Rationale: Purified C1-inhibitor replaces the deficient protein in hereditary angioedema, effectively resolving acute episodes.
Question 5 of 5
which of the following Receptors is not found as membrane bound or endothelial bound receptors in MACROPHAGES
Correct Answer: C
Rationale: NOD-like receptors are intracellular, not membrane-bound, unlike TLR3, TLR4, and scavenger receptors, which are surface receptors on macrophages.