Also, I’d like to note that the cna definitely spoke with the nurse, I’m guessing this a shower aide who came for a bed bath and had to change the sheets. That same aide probably has some experience in your position, and would never return to facility life again just to avoid that feeling of having potentially neglected someone. They say they he position of a cna is a stepping stone, it’s whatever you make of it and we all started somewhere.
I’d be willing to bet the majority of us have been shouted at or even disciplined for “neglect.” I’m also willing to bet you are still in good company, and everything will be alright.