ATI RN
Pediatric Infectious Disease Practice Questions Questions
Question 1 of 5
Henoch-Schonlein purpura (HSP) is the MOST common systemic vasculitis of childhood. Arthritis occurs in
Correct Answer: D
Rationale: Arthritis occurs in approximately 80% of HSP cases, typically affecting the lower extremities.
Question 2 of 5
You are evaluating a preadolescent boy by using an orchidometer. The expected testicular volume at this stage should be less than
Correct Answer: B
Rationale: Pre-pubertal boys (before Tanner II) have testicular volume <4 ml (B). Puberty begins at ~4 ml, making higher values (C, D, E) post-pubertal; 2 ml (A) is too restrictive.
Question 3 of 5
Approximately $80 \%$ of blood cultures that will be positive are identified at
Correct Answer: A
Rationale: Most positive blood cultures are detected within the first 24 hours of incubation due to modern automated systems.
Question 4 of 5
Immunization is one of the most beneficial and cost-effective disease prevention measures. As a result of effective and safe vaccines, which of the following diseases has been eradicated?
Correct Answer: A
Rationale: Smallpox is the only human disease eradicated globally due to vaccination efforts.
Question 5 of 5
The minimum interval between the 2 doses of MMR is
Correct Answer: B
Rationale: The minimum interval between MMR doses is 4 weeks per CDC recommendations.