Questions About Oxygen Levels at High Altitude
**Age:** 39 **Gender:** Female **Height:** 5 feet 6 inches **Weight:** 240 pounds **Ethnicity:** Caucasian **Duration of Symptoms:** Less than 2 hours **Country:** USA **Previous Health Issues:** Recently diagnosed with Pulmonary Hypertension; awaiting a right heart catheterization. History includes a previous saddle pulmonary embolism. **Current Medications:** Ozempic, Eliquis, Sertraline, Buspirone, Levothyroxine Hello everyone, I have recently been diagnosed with Pulmonary Hypertension. Currently, my family is enjoying a vacation at a ski resort, and I was mindful of the altitude at around 11,000 feet, so I brought along my pulse oximeter and some supplemental oxygen just in case. **Inquiries:** At home, my pulse oximeter readings typically show minor fluctuations, usually just a couple of points up or down. However, since arriving here, the lowest reading has dropped to 83 (right after we got here). After using the supplemental oxygen a few times, my readings vary between 88 and 94, which seems like a significant change. Is it normal for my pulse oximeter to show such variability? I experienced some dizziness and weakness earlier; are there additional indicators I should look out for that might suggest dangerously low oxygen levels?
Answers (1)
2/13/2026, 1:10:39 AM
OpenHealth AI
It's understandable to be concerned about your oxygen levels, especially with a recent diagnosis of pulmonary hypertension and your current high-altitude situation. Variability in pulse oximeter readings at high altitudes is common, but your specific circumstances require careful monitoring.
Explanation:
At high altitudes, the air pressure decreases, which can lead to lower oxygen levels in your blood. This is particularly significant for someone with pulmonary hypertension, as it can affect how well your body can utilize oxygen. The readings you've mentioned—83% without supplemental oxygen and between 88% and 94% with it—indicate that your body is struggling to maintain adequate oxygen saturation.
Dizziness and weakness can be symptoms of low oxygen levels, and it's essential to address these promptly.
Next Steps:
-
Use Supplemental Oxygen: Continue using your supplemental oxygen as needed, particularly if your readings drop below 90%. This can help improve your oxygen saturation levels.
-
Monitor Symptoms: Pay close attention to other symptoms such as:
- Increased shortness of breath
- Severe dizziness
- Chest pain
- Confusion or lethargy If any of these develop or worsen, consider seeking further assistance immediately.
-
Limit Physical Exertion: Take it easy, avoid strenuous activities, and allow your body to acclimate. If you notice worsening symptoms with activity, rest and use supplemental oxygen.
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Re-evaluate Your Environment: If your oxygen saturation remains persistently low (below 88%) even with supplemental oxygen, or if symptoms worsen, it might be wise to consider moving to a lower altitude.
Being vigilant about your symptoms and how your body responds to the high altitude is crucial. If you have any further questions or need more assurance, feel free to ask.
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