Seeking advice: how to deal with a micromanging co-worker

Hello, I’m a nurse in the UK.

I’ve done my role for 2.5 years, my colleague has done the role for 4 years now.

We have check lists in surgery which we have to sign off at the end of a working week, to which the nurse who’s in there the week after would normally put away in our check list folder on a Monday.

This one colleague consistently delegates the task to me and my other colleagues, by constantly changing the day these need to be put away so she can avoid putting these into the folder out of laziness…

For example:

Colleague A was in surgery 1 from Monday-Friday, they signed the sheet.

We’re closed over the weekend, so colleague B (the micromanager) comes in on the Monday after colleague A and they take the sheet; gives it to colleague A and say they have to put it away as they was in there last and says “they should have put it away Friday or first thing in the morning” even though they’re now assigned a different surgery.

Whereas colleague C, has put away colleague B’s sheet which was left in surgery C over the weekend; exactly what colleague B (the micromanager) is telling colleague A off about.

This is a constant fight between us as colleagues, as she is no higher than us and is also a normal nurse; this is a well known fact about her that management is aware of that she delegates different tasks and micromanages us as a team.

Today I came into surgery and found 5 weeks of check list sheets!! Which was all hers as she was in there for 5 weeks alternating with my other colleague.

There was a huge argument about this, where she shouted at me regarding it and refused to put them away when I asked her too even though this is the rules and constant change she pushes on me and my other colleagues? I even tried to explain to her that she constantly changes her mind on the decision as me and my other employees had agreed and told her this, but she denied it.

I explained to her she needed to stop speaking to me like that and understand that this was her own rule she implemented and I’m just following it, but she decided to change it again and say if I came into the surgery after her then I should be putting them away?

How do I deal with a colleague that constantly micromanages and changes the rules to suit her?

I know this is petty, but it’s really bringing me and my colleagues down. Any advice is appreciated Thank you