All right, welcome back to the Internet Book of Critical Care Podcast. I'm here with Adam Thomas,

and we're going to talk about arterial blood gas, venous blood gas, pulse oxymetry, all things

blood gas related. Ah, Josh, this is going to be controversial at all. Yay! Are you trying to... If you've been following long-term conversations for decades in critical care, this one's

going to be fun, isn't it, Josh?

I don't know, man.

I don't know how many more arguments I could tolerate about arterial blood gases.

For those listening, there's a long history of us trying to figure out what the about arterial blood gases.

For those listening, there's a long history of us trying to figure out what the best way to measure and observe oxygen in nation, auction in delivery, and oxygen extraction.

And it's near impossible for all of us to agree.

But this is clinically very important because we're aerobic respirators. We need oxygen to produce ATP. And without it, we get into a lot of trouble.

So Josh, today, we're going to cover what to use at the bedside to figure out how do I assess

oxygenation, ventilation, what are specifics around that pulse oxymour that is good and bad?

And then some additional topics that are important to cover.

So start me off in the beginning, Josh.

Why is it fundamentally important to understand why we're monitoring these things?

Meaning in critical care, we're all about matching the delivery of

oxygen to the consumption of oxygen. That's our whole job. So map this out for me. I'm a basic

trainee. Why is this important? Yeah. So first we're going to start with talking about

oxygenation. And one of the key fundamental principles of critical care is we

want to make sure our patients are receiving enough systemic oxygen delivery to their body. And the

equation for systemic oxygen delivery is essentially your cardiac output multiplied by your

hemoglobin, multiplied by your oxygen saturation. So it's the auction saturation that is

...