Medex have published a booklet, available for free download in a number of formats, by clicking on the following link:

http://www.medex.org.uk/medex_book.htm

This book has been written by people who like being in the mountains, who have a particular interest in medicine and what can happen to people at high altitude.

Its contents should be treated as a guideline only, based on current
knowledge. Research into high altitude illness is not easy to do, not
comprehensive and far from complete.

Anyone travelling to high areas is advised to seek medical advice before going and also, where possible, if they become ill at
altitude.