"My grans condition and the doctor not listening"

My gran was in hospital for a month. We knew the details of her condition however she was also having small TAs/seizures. In the end of my grans life, my parents spent too much time basically arguing with a doctor about this because they apparently couldn't see anything wrong with her however my dad had video evidence to show exactly what they were meaning.

During the back and forth of this conversation, that wasn't getting anywhere because it felt that the attitude was that doctors know everything and we know nothing about our own family, my gran took another turn. This time they took her for scans however they didn't even make it to get the scan before they had to turn back, remove someone from their single room to give it to my gran. She was being treated as end stages. Within 10 minutes my gran passed away. 

It may have been my grans time to go, but I feel that healthcare professionals should listen to the families. Most people know the characteristics, etc of a family member. A lot more than someone that has only laid eyes on them for 5 minutes. Maybe if there wasn't so much condescending chat, my gran may have got the help she needed.

Also, on topic with my gran's experience in hospital - she was being treated as palliative but still had capacity. I'd like to know why she was in a room with individuals who were suffering with deliriums or dementia? We asked numerous times for my gran to be moved. She was depressed in the room she was staying in. To make matters worse, she couldn't walk so there was no escape for her to get a break from listening to the constant shouting etc. 

I feel it could've been a lot more thought out. Working with dementia patients myself, 12 hours can be daunting never mind 3 weeks. It's ridiculous!