Format for handwritten lab values

I have noticed that people write lab results in a "tree" or diagram format, not needing to put in what lab is what.

Anyone have a copy of that as a "key" so that I can learn how to use that "tree" thingy and write my labs like that?

I've tried to google...what is the format that people use to write their CBC's and electrolyte panels? I can't find it on google. It's like a diagram or something, then they just plug the values in different parts of the lined off areas... without having to write what value is what. Anyone that can help me out here, I'd be grateful! I've seen this format on kardexes and report sheets... but somehow the "key" has slipped my mind! I'm in a class with five gals and none of us know, but want to!

Thanks!