Create a Healthcare Contingency Plan
While no one likes to think about it, at some point in time you might be unable to make your own healthcare decisions. The best time to address this contingency is long before you're actually in that situation.
The typical documents you'll need are a healthcare power of attorney, which allows a certain person to make medical decisions on your behalf, and a living will, which outlines your wishes for care in various medical situations.
Be sure to check the laws in your state, since some require a specific language or format for healthcare proxies.