This is the casualty card template I carry in case of emergencies on expedition. I print it on waterproof paper so it doesn’t smudge or tear easily. Please feel free to download and use it if it’s helpful to you.
This booklet, written by MEDEX, is designed for lay people (non-medical professionals) so it includes lots of the important facts without over-medicalising the information. It explains how your body many change as it has to cope with high altitude. Importantly, it also covers the serious altitude illnesses.