A Medical Power of Attorney, authorized under Texas Health & Safety Code Chapter 166, designates a trusted person to make healthcare decisions on your behalf if you become incapacitated and cannot communicate your wishes. This authority includes consenting to, refusing, or withdrawing medical treatments based on your previously expressed preferences. By appointing a medical agent in advance, you ensure that someone who understands your values—not hospital staff or distant relatives—guides your care during a medical crisis, while also avoiding the expense, delay, and court involvement of a formal guardianship.