Hey! Yeah these questions are basically the same... they just want you to talk about something you’ve successfully brought in to show you can adapt and are always looking at changing practice!
I have been asked this for both of my interviews and I’ve also been on the interview panel for band 5 nurses too. In mine I mentioned that we were having a lot of falls, so got the staff to increase the rounding we did and noticed a reduction in falls! I’ve heard of other people say that they realised patients weren’t drinking much, so brought in a 10 and 2 o’clock drinks round to encourage nutrition and hydration!
I think people over think it. Anything small can be a massive change! Hope the interview goes ok for you