Hi Kirsten,
Thank you for sharing on the board! I became an RN 1 year ago and before that was a CNA. As a CNA I definitely had instances when I would try to reach an RN to report something like a sugar or an abnormal vital via phone multiple times and couldn't get a response. Yes, RNs are busy and yes CNAs are also busy. In the future, if there is something quite abnormal like an SPO2 in the 80s and your RN can't be notified right away, let charge know, she/he is there as a resource to the floor and can help you out. This patient can decline quickly if the issue isn't addressed. It sounds like you are making a plan to make it work though!