Comorbidities are commonly encountered in children with autism, especially other psychiatric disorders. Of the following, the MOST commonly associated disease with autism is

Correct Answer: D

Rationale: Attention-deficit/hyperactivity disorder (ADHD) is frequently comorbid with autism, affecting attention and impulse control.

Correct Answer: C

Rationale: Dilute artificial formula can lead to hyponatremia and total body sodium depletion, whereas SIADH causes water retention rather than true sodium loss.

Correct Answer: C

Rationale: Childhood SLE typically presents after 5 years of age.

Correct Answer: B

Rationale: Von Willebrand disease causes prolonged bleeding time despite normal platelet count due to defective platelet adhesion from a deficiency in von Willebrand factor.

Correct Answer: D

Rationale: Sepsis causes distributive shock by inducing vasodilation and capillary leakage, leading to hypoperfusion despite adequate blood volume.