📹 The Curbsiders discuss acute hypoxemia and how to approach it.
. I'm Dr Matthew Watto, here with my great friend, Dr Paul Nelson Williams. Today we're going to be talking about acute hypoxemia and how to approach it, from ourI want to start us off with some basic definitions, things that are going to get you made fun of by your pulmonary colleagues if you mess them up. So, hypoxemia. How do you pronounce it?Okay, thank you. Paul I should have asked you that before we started recording.
I've mentioned the pulse oximeter a couple of times. That's a very reliable device, right? They did a great job developing it and there are no holes in what it's able to do for us now.Dr Mark made the point a couple of times that it's very specific but it's not always accurate. It all hearkens back to how they figured out how these values worked in the first place.
Is this patient sick? Are they not sick? As you mentioned, the degree of hypoxemia is important. At those very low levels, you have to assume it's bad. Below 70%, we know it's bad, vs someone in the high 80s, which gives you a little more time. Here are the six causes of hypoxemia, and he said some of these we can rule out right away, such as low inspired oxygen content. Unless you're at altitude, that's probably not the cause of acute hypoxemia.
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