Struggling for a research proposal topic

I am a grad student in a NP program. I am taking a Quantitative Nurs Research course and need to develope a research proposal. I am at a disadvantage since I am not in a clinical setting right now ( I am a stay at home mom raising kids ) Prior to kids, I was an Oncology Nurse for 14 years so it would be the topic for which I am most familar. I would like to keep the topic simple and have easily measurable variables. ( ie best mouth care protocals, handwashing techniques, ) My question for those on the floors or in the clinic, what do you see as pt care problems that you would change if you could. This could be pt care or pt teaching issues.

I thank you in advance and appreciate any suggestions.