Team, Zach here from med geeks.

So over the next four weeks, we're going to talk ABGs.

Now I don't want you to pull your hair out now and say,

ugh, four weeks of ABGs. Well, I want to break them down into four separate

podcasts because over my time learning A.B. G.S. until now I do it on a daily

basis, I've always tried to learn them all at once. And they all require different step-wise

process to kind of evaluate what's going on. So I think it's best to break them down

into four parts. So part one will be respiratory acidosis. Part two,

respiratory alkalosis. Part three, metabolic acidosis. And part four four metabolic alkalosis.

I'm going to do this so that your brain can focus in on one acid-based disorder

and not get them all jumbled up and let the steps sink in for each disorder.

So what's the best approach overall when looking at any acid-based disorder?

Well first we've got to quickly review what is normal. So a normal pH is 7.35 to 7.45.

So if the pH is less than 7.35, it's in Acidemia.

If the pH is above 7.45, it's an Alcalamia.

Normal bicarb 22 to 26, normal PCO2, 35 to 45 45 so a quick purl if the pH and by card move in the same

direction it's a metabolic primary process if the pH and bycard move in the opposite direction, it's a respiratory primary process.

For example, pH 7.25, bicarb 12, both are decreased, therefore metabolic process.

pH 7.25 and PCO 260, both moving in opposite directions, pH low,

PCO2 high, therefore it's a respiratory process. Now note there can be primary

process, so every acid-base disorder should have a primary process.

But then note that there can also be co-existing acid-based disorders,

...