I would make an appt. with her PCP. Make a list. Explain and if they need DPOA. I would only give a copy. Some PCP's want permission from the patient. I was able to get permission from my spouse. He does not understand what some if his physicians mean.
I give him an easy way to not feel threatened or scared about anything by relaying it in our home or when filling out important information. I usually make our appointments on the same day. I want my spouse to know I have his back. Always reassure and see if they have questions about health problems.