Oh Zonk, Zonk, Zonk ...
Go visit. You don't have to see Mum ... there might even be a one way mirrored area where you could view Mum but she won't know your there ... if you visit in person they can give you better answers .. the trouble with phone calls is the Privacy & Confidentility Act. You can't prove your YOU on the phone, so if you get ANY information it will all be 'positive and upbeat' whilst not actually telling you anything.
Well, that's what they're SUPPOSED to do LOL, Me? I am quite confident I know I am speaking to the proper family member, and I'm honest and don't beat around the bush. I do know the politics of each family, and respect that some dont' want to HEAR the truth. It's just something you pick up.
Assessments can take up to 6 weeks before anything is put into PLACE for her Care plan, because it takes a person up to that long to settle down into the new routine (some take longer, some never get it, some settle immediately). Sleep Assessments, Continence Assessments, Behaviour Assessments (and there is LOADS of them to choose from).
You can, if you have POA request a phone call from the Case Manager on ANYTHING that happens/is to happen/is planned for Mum. It's the least they can do. They should, shortly, be having a Case Conference to discuss Mum (without Mum actually being present for this). You can air your views, your requests, YOUR needs. Part of their Duty of Care is to also support the family members. This means you!
Not knowing your Mum, there's a lot of questions that can't be answered here, but they are all good valid questions to ask the NH. I suggest you give them a ring on Monday (Case Managers almost always only work Monday to Friday) ~ (for our overseas friends, Friday is a Public Holiday as it is Australia Day for us tomorrow)
These feel like trivial anxious caregiver questions that they must get tired of answering
Further from the truth .. it means we know you really do CARE.
Hugs .. hope I have helped a wee bit