The nurse planning a safety program for high school students should understand that most accidental deaths in adolescence are related to:

Correct Answer: C

Rationale: Automobiles (C) are the leading cause of adolescent accidental death due to driving risks. Firearms (A), diving (B), and drowning (D) are less frequent. Document: 'The chief safety hazard for the adolescent is automobiles.'

Correct Answer: C

Rationale: The prodromal period (C) is the early symptomatic phase before rash/fever. Incubation (A) is pre-symptomatic, infectious (B) overlaps, and stage one (D) is unrelated. Document: 'The prodromal period… between the earliest symptoms and… rash or fever.'

Correct Answer: D

Rationale: Complete androgen insensitivity syndrome (CAIS) is caused by mutations in the AR gene on the X chromosome, following an X-linked recessive pattern (Choice D). Phenotypic females (46,XY) inherit a mutated X from carrier mothers, with males unaffected as they have one X. Autosomal dominant (Choice A) and recessive (Choice B) don’t apply to X-linked traits. Mitochondrial (Choice C) involves maternal transmission, unrelated here. X-linked recessive fits CAIS’s genetics.

Correct Answer: B

Rationale: Macrophage activation syndrome is a severe complication of systemic JIA, marked by fever, organomegaly, and cytopenias from hemophagocytosis (EULAR criteria). Viral syndrome lacks specificity, hemolytic anemia doesn’t fit all findings, spleen failure is unclear, and DIC requires coagulopathy evidence.

Correct Answer: C

Rationale: Respiratory alkalosis shifts phosphorus intracellularly due to alkalemia, lowering serum levels (UpToDate). Acidosis (A, D) shifts it out, and B, E have minimal effect.