ATI RN
Pediatric Immunization NCLEX Questions Questions
Question 1 of 5
Where are double-positive (DP) cells found?
Correct Answer: C
Rationale: DP cells reside in the thymus cortex, where they undergo selection processes.
Question 2 of 5
T cell activation of TH1 leads to ___ antibody production and opsonization (or macrophage activation). Activation of TH2 leads to ___ antibody production and activation of mast cells and eosinophils.
Correct Answer: B
Rationale: TH1 drives IgG for opsonization/macrophage activation; TH2 drives IgE for mast cell/eosinophil activation.
Question 3 of 5
Antiapoptotic molecules are encoded by the death-inhibiting family of bcl genes.
Correct Answer: A
Rationale: bcl genes encode anti-apoptotic proteins, inhibiting cell death.
Question 4 of 5
Which of the following is NOT true regarding interferon?
Correct Answer: C
Rationale: Interferon enhances APC function, not inactivates them.
Question 5 of 5
To prevent inadvertent complement activation, eight inhibitors exist. Which of the following is an inhibitor preventing activation of C2 and C4, and prevents C3 activation by the alternative pathway?
Correct Answer: A
Rationale: C1 inhibitor regulates C2/C4 in the classical/lectin pathways and indirectly affects C3.