“CYA” is a term you hear all the time in health care. It’s a great piece of nursing lingo but also a great piece of advice. It means “Cover Your @$$.”
Perfect example: you have a patient whose potassium is high. You page the doctor and suggest he intervene (give the patient kayexalate and a heart monitor, review their meds, etc.) The doc decides to just wait it out. What should you do?!? CYA. Chart what time you told the doc AND which doc you told. Maybe the doc has a legitimate reason to wait and is making the right call. However, you never know. When in doubt, chart it.
Sadly, every nurse gets called to the mat eventually. It could be a patient complaint, co-worker complaint, or even a lawsuit. In the end, the only one who will protect your license is you. So, follow policy, and chart, chart, chart! It will save your butt in the end.