P-Video: Rule of 15 for Anion Gap Metabolic Acidosis

[GustavoMontanha]

Thanks for the great info and cool video - amazing people out there. I have a question unrelated to the content by itself but that shows in the video: what is that sort of "table" that keeps showing up with the 6 "cells" and the < showing the number 400 and 500 on the right. I see it's a way of organizing values from the lab results but I'd like to know a bit more about it, such as what's the name of that, who created that and why and how to use it effectively. Thanks for everything!