We bought my parents a whole life medical insurance policy that they can use at the end. The policy kicks in when they loose 2 of the 6 functions of self sufficiency. They can draw it down until their is no longer any value left. They should be good for up to around 4 years of total care. If they never need it, the policy reverts back to my sister and I after their death.
Yeah it cost a lot, but it dosen't just go away at the end like long term care insurance does.
Also, get your parents assets out of their names. The state can put a lien on everything if medicade becomes the primary payor. A trust does not work, the deeds need to be in the heirs name for a minimum of 7 years before medicade no longer has a lookback period of asset value to attribute need. My parents own and still live in their house, but my sister and I are the ones on the deed. They pay us "rent", $10 a month, and are no longer the legal owners of the house and property.
A very good estate attorney and a good insurance agent from one of the big Life insurance companies (The prudential or MetLife) are worth their weight in gold. Pay them what ever they charge, and they will charge. However, it's still cheaper in the long run.