The lab calls. Critical potassium. Now what?

Hi, it's Dana in the lab. Critical potassium on John Miller, three twelve fifty-four. Six point eight.
Got it, thanks!
Read it back. Get her name.
John Miller, three twelve fifty-four, potassium six point eight. Your last name?
Reyes. Correct. And yours?
Paged the doctor. Charted. MD aware.
Which MD? When? What did he say?
Write it so nobody has to ask you.
Patel. Returning your page.
Amber, about John Miller. It's two twenty-one.
...Are you charting me?
...Two twenty-two.