25-year-old female who has had pyruvic kinase enzyme deficiency and macrocytic hemalytic anemia since birth. Hemoglobin levels stay between 6.0 and 8.6 with occasional spikes into 9s. NEVER above the 9 range. Family is planning a vacation in the Colorado mountains. Need to know what is a safe altitude to stay under so as not to cause harm due to thinner air in high altitudes.
Hi, Thanks for asking. Based on your query, my opinion is as follows.1. Importantly rapid ascent or climbing with this hemoglobin percentage needs to be avoided.2. Preferably less than 5000 meters should be the maximum, after which oxygen saturation will rapidly deteriorate.3. Take an oxygen tank for emergency purpose. Have good HY Chat Doctor.  Any respiratory infection to be seriously treated. Hope it helps. Any further queries, happy to help again.