ATI RN
Pediatric Immunization Test Questions Questions
Question 1 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 2 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 3 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.
Question 4 of 5
True about GVHD
Correct Answer: B
Rationale: GVHD doesn't occur in identical twins due to genetic identity; it's driven by donor T cells, not recipient ones.
Question 5 of 5
Wrong about Macrophages
Correct Answer: B
Rationale: Macrophages present antigens to activate T cells but are less efficient than dendritic cells for naïve T cell activation.