Breather here and she's going to show us how a normal blood gas sample is run on an average-size testament that we get here in the lab. When you take us through the process, okay here's a typical range. Now this isn't a patient sample, this is just for demonstration. First, we have to remove the bubble. You're going to mix the sample. So now you're mixing, you're going to mix. And I notice you're mixing in three planes. You're not mixing too vigorously and you're mixing for at least 30 seconds, let's say 30 to 40 seconds. And do you flip the syringe, or how does that work? Usually, you flip it up and down rotation. So, I notice that we're using a Radiometer ABL series for the purpose of this demonstration. It's capable of running blood gases, electrolytes, has a co-oximeter on board, and it also analyzes metabolites. So, the first thing that you look at before you run it is the instrument. You look at the instrument to see if all parameters are green. If all parameters are green, that means it's good to go. No parameter is out of calibration, route or QC, so we can go ahead and run our blood gas. The first thing I touch on the screen is to log on. I log in with my cell range. I'll go ahead and remove more bubbles. Now, I notice that you're presented with some choices here. This is just a hot screen, the hotkey screen, and we're just going to pick up blood gas only, by microliter. We have other choices, but we're just going to go with gases right now. So, then I can show you what I can add on other parameters later on if I need to. Let's go start,...