A nurse on an oncology unit is assessing a child who has a brain tumor. Which of the following findings should the nurse expect?

A. Tachycardia can occur with a brain tumor due to increased intracranial pressure and systemic stress responses. B. Hyporeflexia is not a typical sign of a brain tumor. Hyperreflexia or changes in reflexes may be seen with central nervous system involvement. C. Decreased appetite is more common due to nausea, vomiting, and other neurological symptoms associated with brain tumors. D. A negative Babinski reflex is normal in children over 2 years old, and a positive Babinski reflex (extending the toes) may indicate neurological involvement, not a typical finding in brain tumors.