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Wildly fluctuating O2 levels

Lung Health | Last Active: Dec 3 5:39pm | Replies (126)

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@kudzu

Thanks!
No, I’m not lightheaded all the time.
At the Er they did a ct scan and xrays, I reread the X-ray report and it did mention a moderate amount of air trapping. Tests do mention minimal bilateral atelectasis
I had a 6 min walk test done in Miami which came out very well. The only problem is that the tech only checked o2 seated before and after-it was 99, but who knows what happened in between?
No, I’m not going back to the Er unless I start looking like a smurf.
Yes, I do have heart issues: a bovine mitral replacement which is holding up well
and arrhythmia- frequent pvc’s and nonsustained v-tach.
Until recently I was taking Amiodarone but stopped when my latest pft indicated reduction in tlc and rv.
What is parenchyma?
The heart lung cycle being off makes sense to me. Is that the same as ventilation/perfusion mismatch?

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Replies to "Thanks! No, I’m not lightheaded all the time. At the Er they did a ct scan..."

The lung parenchyma is that portion of the lungs involved in gas exchange. The most prominent structure in this region is the alveolus. if there is scarring in small airways it will trap the air.
I am surprised pulm md didn't order high resolution CT as this one of most accurate for air trapping. please ask for it.

proper 6 min with oximeter on. if your hands cold, it can be taped to the ear.
the whole point of the test is to measure exertional hypoxia. pre and post is not the accurate results of the test.
https://pubmed.ncbi.nlm.nih.gov/32023887/
Exercise-Induced Oxygen Desaturation during the 6-Minute Walk Test