Dr. Dave, MD
Region: US
Saturday 16 May 2026 15:42:46 GMT
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robinannkeller :
THIS is why respiratory care practitioners matter
2026-05-28 12:45:47
2
tguy32779 :
Can you explain A-a gradient? Learning it in NP school now. To me, it seems like it’s essentially a numerical way to distinguish V/Q mismatch
2026-05-17 10:41:48
3
Gmunny7368 :
Great explanation! Thank you!
2026-05-16 16:03:43
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jjthert :
I teach it as Amazon trucks to carry packages 😂😂 so bunnies on a bus
2026-07-01 21:51:50
1
jaymauyne :
I always thought it’s 1.34 not 1.39
2026-05-17 01:04:33
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Kitty :
Thank you this was super helpful. I had just gotten report the other night from a nurse in the ER I’ve got a patient who has emphysema COPD. All the things came in for shortness of breath, was on BiPAP and gave meds and then ended up being on room air, but in report, he said he was going to put him on 2 L because his PA O2 was like 87 but says we’re 94 so I was confused because in my mind he was oxygenating appropriately according to pulse ox
2026-05-20 04:26:29
1
john smith :
Because of the oxygen dissociation curve.
2026-06-13 15:13:31
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cs :
In RT school this equation always got best of me😭
2026-05-17 06:32:14
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Gina Lester :
if the Sa02 is greater than 94% you can use Hb × 1.34 which will give you the answer for Ca02 instead of working out the whole equation. All about the Hb, with this equation.
2026-05-18 11:54:15
1
ariss1 :
Counterpoint: I care about achieving and maintaining minimally adequate O2 delivery much more than optimizing an arbitrary P/F I only check a few times a day. The pO2 at a single point in time is both a negligible contributor to DO2 and not practically monitored with the frequency necessary to achieve adequate life support and resuscitation.
2026-05-16 19:22:36
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Trey_Nam :
This is excellent
2026-05-24 05:39:23
2
SFlyer MD :
Love this explanation of the bunnies. Thanks.
2026-05-16 20:31:07
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SaddestBeet :
this is my FAVORITE topic!!! great video!
2026-05-18 02:08:42
1
HalimoTheQueen :
Love the explanation!
2026-05-16 23:19:34
2
mulleztw6gj :
Great explanation & analogy 👏
2026-05-18 17:34:29
2
mindytheslewth :
You’re helping other people and I love it!
2026-05-18 03:16:10
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SSN :
thanks for doing a video!
2026-05-17 20:06:07
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Strombilly :
SaO2 is a trending tool. It measures only 2 wave lengths. PaO2 is a direct measurement. Methemaglobinemia can mask Sa02 saturation.
2026-05-16 16:41:41
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Shiv 🦦 :
lol you say capillaries like a Canadian haha
2026-05-17 03:38:11
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Lol :
I have never understood why my fellow physicians are reluctant to transfuse blood for patients who are clearly hypoxic and struggling from hypoxia. They have accepted hospital dogma not to transfuse unless hemoglobin is less than 7.5 or some ridiculous BS like that. You can clearly see that an improvement in hemoglobin is going to be the greatest thing you can do for improving your oxygenation.
2026-05-16 17:11:42
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ICU physiology insights :
I am sure you are a hospitalist
2026-06-24 20:28:34
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ICU physiology insights :
Sorry for outburst...your information is correct but you have interpreted it wrong. You just said, oxygen delivery is sao2. You just said hemoglobin sats doesn't changes with pao2 after a certain point. Take a moment... this needs deeper thinking... you know the stuff...
2026-06-24 20:35:41
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