ATI RN
Pediatric Immunization NCLEX Questions Ricci Questions
Question 1 of 5
Anaphylatoxins are chemotaxins that stimulate phagocytosis and degranulation. Which complement components is/are mainly involved?
Correct Answer: D
Rationale: C3a and C5a are key anaphylatoxins in complement activation.
Question 2 of 5
shock syndrome is mediated by cytokines secreted from cells.
Correct Answer: B
Rationale: Septic shock involves a massive cytokine release primarily from T cells in response to infection, driving the systemic inflammatory response.
Question 3 of 5
Antibody-dependent cellular cytotoxicity (ADCC) is the process by which natural killer cells destroy infected cells, identified by what immunoglobulin on the surface?
Correct Answer: D
Rationale: IgG coats infected cells, marking them for destruction by NK cells via ADCC.
Question 4 of 5
Killed vaccines are theoretically much safer than live vaccines, but cannot replicate in hosts and cannot enter intracellular antigen presenting pathways. Which of the following killed vaccines is recommended for children but not adults?
Correct Answer: C
Rationale: Inactivated poliovirus vaccine (IPV) is standard for children, while adults typically rely on prior immunity or boosters.
Question 5 of 5
A child presents with a maculopapular rash on the extremities and trunk. Petechiae is found on the trunk and mucous membranes. Lab tests show a Neisseria infection and the physician is concerned about meningococcemia. Which of the following is the most likely?
Correct Answer: B
Rationale: C5-C9 deficiency impairs the membrane attack complex, increasing susceptibility to Neisseria infections like meningococcemia.