What is the most consistent structural brain finding in autistic spectrum disorders?

Correct Answer: A

Rationale: Studies show that individuals with ASD often exhibit a diffuse increase in brain size during early development, although this finding is not universal.

Correct Answer: C

Rationale: Phenylketonuria does not typically present with atopic dermatitis-like symptoms.

Correct Answer: B

Rationale: Intrauterine growth retardation is not typically associated with polycythemia

Correct Answer: D

Rationale: Ethambutol inhibits arabinosyl transferase and can cause dose-dependent optic neuritis with red-green color blindness.

Correct Answer: D

Rationale: Congenital anomalies are the leading cause of neonatal mortality in full-term newborns, as they often result in severe structural or functional abnormalities that are incompatible with life.