Discover and read the best of Twitter Threads about #hypoxemia

Most recents (3)

1) Hypoxemia --> low blood O2 levels.
Hypoxia --> low tissue oxygenation wrt demand

Types of hypoxia

1. Hypoxemic
2. Stagnant
3. Histotoxic
4. Anemic
5. O2 affinity hypoxia

Thanks to @kcolenaj Image
2) The problem arises if you define O2 content of blood purely as PaO2 or as PaO2+ oxyHb saturation --> for this is the total O2 content of blood.

If we eliminate oxyHb, O2 content of blood becomes less meaningful since the lion's share of O2 is carried by hemoglobin!
3) If you consider oxyHb + PaO2 in total the anemic and O2 affinity forms of hypoxia must necessarily be a cause of hypoxemic hypoxia --> since anemia (reduced Hb) or increased O2 affinity --> cause HYPOXEMIA!
Read 10 tweets
🚨: Oxygen levels measured by the "gold standard" pulse oximeters were "3X less likely to detect low oxygen levels in Black patients than in white patients."
🧵below ⬇️⬇️ Pulse Oximeter against a di...
.@ushamcfarling writes how using pulse oximeters that can't read oxygen levels on darker skin as accurately could delay potentially life-saving #COVID therapies in Black, Asian & Hispanic patients
via @statnews
statnews.com/2022/05/31/fau…

🧵2
🛑This isn't NEW news.
➡️ In Aug '20: @BostonReview wrote "A #PulseOximeter "must “see” your blood by having the light pass through your skin. This should give us pause, since a range of tech-based on color sensing is known to reproduce racial bias."
bostonreview.net/articles/amy-m…

🧵3
Read 7 tweets
I'd like to point out that while the resolution of a #chronicillness was striking, what is more striking is the rapid descent into Wernicke's in a hospitalized 90 yo woman - a descent so striking that she went into respiratory distress necessitating a #ventilator. 1/
Upon giving #IVthiamine per a #wernickesprotocol at 200mg 3X p/d she woke up, after just 2 days of thiamine treatment, and the ventilator was removed. What could this tell us about the use of thiamine in #COVID19? Perhaps the cluster symptoms we see are really just a variation 2/
thiamine deficiency - one that is being missed by practitioners everywhere because we're not looking at the #mitochondria for answers. 3/
Read 8 tweets

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