Acute mountain sickness risk

Assessing the risk of acute altitude illness. Medical history and features of the planned ascent can be used to assess the risk of acute altitude illness after ascent. Check marks should be placed in the boxes that best describe the variables in the left-hand column. The risk of a planned ascent is determined by the farthest column to the right in which a check mark is placed. This assessment applies to unacclimatized individuals. Ascent is assumed to start from elevations <1200 m. A history of acute altitude illness does not necessarily reflect high risk with all future ascents, as a slower ascent rate or lower target elevation on subsequent trips may help avoid problems. The risk of travel above any given elevation can be mitigated by ensuring an appropriately slow rate of ascent.