Fluids and electrolytes . . . .Ok, before you have a panic attack, let me just say that I used to be so confused by everything about F&E. While in nursing school I finally read several books focused entirely on the subject, I then read the ICU book, AACN journals, and completed multiple self study sessions on the topic . . . What can I say? I knew I had a weakness!Nowadays I feel much more comfortable looking at lab values and determining what is going on with the patient. Or, vice versa, looking at a patient and determining what their lab values will look like.A large portion of this is due simply to understanding what the different electrolytes do in the body. Once you feel comfortable with that . . . you’ll know exactly what to expect with elevated or decreased levels.This takes time! You don’t have to know everything . . . ever . . . but if this is something you are struggling with, this cheatsheet will help.