Platelet counts in 50 normal healthy volunteers were performed at sea level and then
serially on rapid induction to 3658 m by air. Subjects were divided into "symptomatic"
and "asymptomatic" groups depending on their score on the symptoms score chart. All
were brought back to sea level and study repeated. Platelet count in the symptomatic
group showed a falling trend while in the asymptomatics a gradual rise was noted.
Keywords
Platelet count - High altitude - Acute altitude hypoxia - Haemostasis - I11 effects
of high altitude
