- Protocol for assessment of acute mountain sickness. Acute mountain sickness (AMS) will be assessed by means of the Lake Louise AMS Scoring system (Roach RC, Bärtsch P et al. The Lake Louise AMS Scoring Consensus Committee. The Lake Louise acute mountain sickness scoring system. In: Sutton JR, Houtson CS, Coates G, eds. Hypoxia and Molecular Medicine. Burlington, VT: Queen City Printers; 1993:272-274).