The nurse is caring for a child with suspected Reye syndrome.Which symptom is most concerning?

Choice A rationaleProjectile vomiting and confusion are highly concerning symptoms in a child with suspected Reye syndrome. Projectile vomiting indicates increased intracranial pressure, and confusion reflects encephalopathy, both of which are hallmark signs of the severe neurological involvement in Reye syndrome.Choice B rationaleFever and cough are common symptoms of many childhood illnesses, particularly respiratory infections. While Reye syndrome can sometimes follow a viral illness, fever and cough alone are not specific indicators of this condition.Choice C rationaleMild headache is a relatively non-specific symptom and can be associated with various conditions. While headache may occur in the early stages of some illnesses, it is not the most concerning symptom suggestive of Reye syndrome.Choice D rationaleMuscle aches can be associated with viral infections, which sometimes precede Reye syndrome. However, muscle aches alone are not as concerning as the neurological symptoms of confusion and increased intracranial pressure indicated by projectile vomiting.