What is the first step in treating someone with HACE?

The first step in treating someone with High Altitude Cerebral Edema (HACE) is to provide supplemental oxygen. HACE is a severe form of altitude sickness that occurs when fluid accumulates in the brain. The primary underlying issue in such cases is the lack of oxygen that the body receives at high altitudes. By administering supplemental oxygen, you help to alleviate hypoxia, which is crucial at this stage of treatment. This can stabilize the patient's condition and potentially slow down the progression of symptoms associated with HACE.

Other options may be necessary in the complete management of HACE, but they do not directly address the immediate threat to life posed by the cerebral edema and oxygen deprivation. For example, performing first aid can be essential for various injuries or conditions, but it does not target the specific cause of HACE. Increasing physical activity could worsen the patient's condition by elevating their heart rate and oxygen demand, while staying at the same altitude keeps the individual at a level where their body continues to struggle with oxygen availability. Therefore, the prompt administration of supplemental oxygen is critical in the initial treatment of HACE.