ATI RN
Pediatric Immunization Test Questions Questions
Question 1 of 5
Which of the following is not true of monocytes and neutrophils?
Correct Answer: A
Rationale: Monocytes do not have unlimited division capacity; they differentiate into macrophages with limited proliferation, making A untrue.
Question 2 of 5
Neutropenia (for white children 1 year of age or older) is defined as an absolute neutrophil count (ANC) less than
Correct Answer: C
Rationale: Neutropenia in children over 1 year is defined as ANC < 1500/mm3, indicating reduced neutrophil levels increasing infection risk.
Question 3 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 likely cause is deficiency of
Correct Answer: C
Rationale: C1 inhibitor deficiency causes hereditary angioedema, leading to recurrent nonpruritic edema triggered by stress.
Question 4 of 5
which of the following initiates the classical pathway of the complement system
Correct Answer: A
Rationale: C1q binds to antigen-antibody complexes, initiating the classical complement pathway by activating C1r and C1s.
Question 5 of 5
Which of the following provides antiviral state to cells
Correct Answer: D
Rationale: Interferon-gamma (INF-γ) induces an antiviral state by enhancing MHC expression and activating immune cells against viral infections.