Because of privacy issues, many medical institutions will not release any information regarding the health case without the written consent of the relative. It is good to make sure that the relative or elderly parent has given the right permissions to the medical doctors and hospitals that they may use and that it is okay to discuss the case with you. The parent may also feel that your involvement in their medical issues is an infringement on their independence and abilities, so often it is difficult to do these things ahead of time.
Home nursing are home medical care are considered higher levels of care. A well-thought-out plan for the possibility of more intensive care for parents or other elderly people in your family can save you a great deal of stress in later years.