One day you received a call from Mom saying that your Dad went to hospital. You of course panic and yet managed to asked all the right questions, and connect with the doctor and started called family members.
And on the midst of all you came to realized that you know nothing about their financial and living situation. You panic even more to know that they are in troubles. So after the facts you need started help them get organized.
Few things to started are bank accounts, living will, power of attorney, doctors and last but not least recruit and delegated assistance. Find family members with talent, or hire professionals to do the work. Your parents may shown some resistance, however those things has to be done, cant wait. So started the conversation.