ATI RN
Pediatric Immunization Test Questions Questions
Question 1 of 5
Antigens and lymphoid cells are delivered to the secondary lymphoid tissues (spleen, lymph nodes) via:
Correct Answer: D
Rationale: Dendritic cells are key antigen-presenting cells delivering antigens to secondary lymphoid tissues.
Question 2 of 5
Low pH
Correct Answer: C
Rationale: Low pH in the GI tract (e.g., stomach acid) is an innate barrier.
Question 3 of 5
In the classical complement pathway, which of the following components is the initiating protein(s)?
Correct Answer: A
Rationale: C1 is the initiating protein in the classical pathway, binding to antibodies.
Question 4 of 5
Pus formed at the site of infection is largely composed of dead:
Correct Answer: B
Rationale: Neutrophils are the primary cells in pus due to their rapid response and death post-phagocytosis.
Question 5 of 5
Which of the following alerts the adaptive immune system to the presence of infection?
Correct Answer: D
Rationale: IL-12 bridges innate and adaptive immunity by activating T cells.