What condition can present with ataxia?

Ataxia refers to a lack of voluntary coordination of muscle movements, which can affect gait, posture, and overall balance. High Altitude Cerebral Edema (HACE) is a severe form of altitude sickness that occurs at high elevations. One of the significant neurological symptoms associated with HACE is ataxia, as the swelling of the brain impacts motor control and balance.

In HACE, the body’s inability to acclimatize properly to reduced oxygen levels at altitude leads to increased intracranial pressure, which can impair the brain's function. This impairment manifests as a range of symptoms including confusion, dizziness, and ataxia, making it critical for wilderness first responders to recognize and act promptly to prevent complications.

The other conditions listed might have their own set of symptoms but do not typically present with ataxia as a key feature, making HACE the most appropriate choice in this context.