My mom is in a nursing home on hospice. She has congestive heart failure, renal failure and dementia. She looks at her oxygen tube all the time wondering what it is. She takes it off completely or had it above her nose giving the oxygen to her eyes. Should I keep trying to explain what it is and why she needs it when I'm there, or just let it be like I'm sure it is when I'm not there? I've talked to the hospice nurse and they basically say it is up to me. She has been here for 6 months and dementia is getting worse but health issues stabilized.