Hi Juliann,
I understand that your mother is refusing treatment with Chemo, but is she refusing all treatment? I suggest you get her a good General Practitioner. He/She will be able to do the blood work, and address other health issues should they arise. She also should see a dietitian, I understand that she is trying to eat healthy but there are other nutrients that her body needs now. Even without treatment, her body is still trying to fight this cancer. She maybe denying it the fuel it needs to do so. Without the proper diet she may feel weak, and create other issues that didn't exist.
I would also tell the Dr that you would like the scans because you want to know how fast or how slow this cancer is progressing. She can demand them. Just because she doesn't want Chemo, doesn't mean that she is just throwing her hands up and surrendering.
Keeping the prayers coming,
Karen