Since my mom's stroke she's been in a facility that offers skilled nursing as well as medicaid nursing home care. When she first had the stroke she was receiving therapy and medicare part B paid 100% of the 1st 100 days. After that it was less (I forget exactly) until it became apparent that there was no progress being made and she would simply be provided with comfort care. That cost a little over $12k a month.
Once her assets were pretty much gone she then qualified for medicaid. The application process is relatively easy, but gathering the required financial records can be difficult. Any big expenditures in the most recent 5 years must be accounted for. I don't recall the exact threshold, but we needed to explain checks that were less than $1000. There are ways to protect your older loved ones' assets, but it can be a difficult subject to bring up as it means acknowledging somethings we'd prefer to ignore.
Good luck.