Hi and welcome back to the podcast. I'm Simon Lang.

So welcome to April's Papers of the Month.

We're going to be running through a few different topics this time.

We're going to be talking about oxygen delivery.

We're going to be talking about the utility of N-Tidal CO2

at predicting return of spontaneous circulation.

And we're also going to be talking about the best way

to diagnose acute heart failure in your sick patient.

And actually this is a really interesting paper

and for me, it has been a practice changer.

This episode is being recorded a bit ahead of time.

So there may be a couple of papers that we've

missed out from this month. If that is the case, then we'll come back with a catch-up episode

as a second episode for April, just so we're not missing anything that's relevant. As always,

we'd be really grateful for any feedback. Please pop your comments at the bottom of the podcast

on the website for all to see.

And if you've got a chance, please take a moment to give us an iTunes rating and leave

us some feedback there.

It is really, really appreciated.

So, without further ado, let's crack on with the first paper. So from med school onwards, it's drummed into us really appropriately that hypoxia should be avoided.

And that in acutely unwell patients, the delivery of oxygen is really important.

It's there in our ALS courses, Airway plus oxygen. And if you look around your

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