I can only imagine how distressing this is for the patient. You might want to post your question specifically to Dr. John Agar, a nephrologist who has decades of experience working with patients with kidney disease on hemodialysis. He’s from Australia. He is one of the experts on this message board. Look for Ask Our Experts and click on his name then re-post your message.
https://forums.homedialysis.org/
Home Dialysis Central has a members-only Facebook group, Members include patients and professionals. You might want to also post your question there. You’ll be asked a few brief questions before you can post your question. You can find the Facebook group at https://www.facebook.com/groups/HomeDialysisCentral/.