What this tool is

An educational and clinical decision-support reference for altitude illness — acute mountain sickness (AMS), high-altitude cerebral edema (HACE), and high-altitude pulmonary edema (HAPE). It provides general adult guidance drawn from the published sources listed on the References page.

What this tool is not

It is not a medical device, not a diagnosis, and not a prescription. Using it does not create a clinician-patient relationship, and it is not a substitute for physical examination, professional clinical judgment, or emergency medical services.

Emergencies

Suspected HACE or HAPE, or any other emergency, requires urgent medical evaluation and emergency assistance. Do not rely on this app in place of emergency care, and do not delay descent or calling for help because of anything it shows.

Medication information

Doses shown are general adult reference values only. Confirm every dose, contraindication, and duration against appropriate clinical guidance and the individual's own circumstances, and follow the treating physician's specific recommendations.

Your responsibility

You are responsible for any decision you make while using this tool. Verify the information against appropriate clinical guidance before acting on it, and consult a qualified clinician whenever you are unsure.

Data

The app has no accounts and asks for no personal details. Your assessment answers and language choice are stored only in your own browser and are not transmitted to us. Anonymous page-view analytics are collected by the hosting provider.

No warranty

This tool is provided "as is", without warranties of any kind. Clinical guidance changes over time, and the content may contain errors or become out of date. Use it at your own risk.