My mommy ❤️ died on the 27th April 2021 but she had been in hospital for about 5 days before dying there. From time to time her eyes were open and rolling a little back very quickly. She was on oxygen, no blueishness as they when people Start dying , her urine was reddish on the first day. The second day it turned normal yellow but there was very little urine in the bag. She was only on IV and I kept asking her if she was hungry . She only tried to say yes once. Other than that when I kept talking to her loudly , she would just look at me or sleep. Did I kill my mother in the hands of bad hospital doctors?
Find grief support for yourself. If she was on hospice they will offer counseling for a year following the death. Many churches also have brief support. Or individual counseling. There are online brief support groups available, as well.
Sorry for your loss
As to the urine, concentrated urine turns so brownish and rusty looking that it appears red-brown in color. The lack of urine was dehydration and the kidneys shutting down.
I hope the hospital personnel helped you with understanding some of the process; hospice often serves to do that when they are involved. I am so sorry for your loss.
As others told you, she was dying. You did NOT kill your mom. I recently lost my mom too. This is a time of grieving for us.
I wish you well. Take comfort that your mom is at peace.