What term is used for the legal authority to make medical decisions for someone unable to do so in Louisiana?

The correct term for the legal authority to make medical decisions for someone who is unable to do so is often referred to as "Medical power of attorney." In Louisiana, this legal arrangement allows a designated individual to make healthcare decisions on behalf of another person when that person is unable to make those decisions due to incapacitation.

Having a medical power of attorney is crucial because it ensures that someone you trust can advocate for your medical preferences and needs in critical situations, particularly when you’re unable to communicate those wishes yourself. This legal document specifies the scope of authority granted to the agent, making it clear who can make decisions regarding medical treatment and healthcare.

In contrast, a health proxy typically refers to a similar concept but may not carry the same legal standing or specifications in every jurisdiction, including Louisiana. A living will specifically outlines what types of medical treatment a person wishes to receive or not receive under certain circumstances, but it does not designate a person to make those decisions. A healthcare directive is a broader term that often encompasses both a living will and medical power of attorney, but it doesn’t specifically denote the legal authority granted to another individual. Thus, "Medical power of attorney" best captures the precise legal arrangement described in the question.