Which symptoms are associated with increased intracranial pressure?

Increased intracranial pressure (ICP) is a critical condition that can present with a variety of symptoms. The primary symptoms often include headache (HA) and nausea/vomiting (NV). This is due to the direct pressure on cranial structures, which typically manifests as a severe headache. Nausea and vomiting can occur as a result of irritation of the brain's centers that control these functions, often exacerbated by the increased pressure.

The other symptoms mentioned in the other options, while potentially relevant in various neurological conditions, are not the classic presenting symptoms of increased ICP. Dizziness and fever may correlate with infections or disturbances in vestibular function but are not specifically indicative of elevated ICP. Vision changes and tinnitus can occur in some neurologic conditions, but they are not definitive indicators of increased ICP. Seizures and confusion can be associated with many different neurological issues, including increased ICP, but they are not considered the primary symptoms.

Thus, the presence of headache and nausea/vomiting is a strong clinical indicator of increased intracranial pressure and should prompt further evaluation and potential intervention.