Patient Guide

Altitude Illness

Acute mountain sickness (AMS) begins with mild symptoms such as headache and nausea. Altitude illness becomes worse as one ascends higher.

If you develop cough and shortness of breath, this can be a sign of fluid in the lungs (high altitude pulmonary edema, HAPE).

Vomiting, confusion or unsteady gait can be signs of swelling in the brain (high altitude cerebral edema, HACE). HAPE and HACE can be fatal within 24 hours.

Read more here.