A health care representative is a person you designate to make medical decisions on your behalf if you become too sick, injured, or incapacitated to communicate your own wishes. This person only steps in when you can no longer speak for yourself. As long as you can make your own decisions, your representative has no authority over your care.
What the Role Is Called in Different States
Every state recognizes this role, but the name varies widely. The most common legal term across the U.S. is “healthcare agent,” used in 34 states’ advance directive forms. Five states use “healthcare proxy,” five use “healthcare representative,” four use “attorney-in-fact,” two use “healthcare surrogate,” and one uses “patient advocate.” These titles all describe the same core role: someone authorized to make medical decisions for another person who cannot make them independently.
The terminology matters when you’re filling out paperwork, because you need to use your state’s specific form. But functionally, a health care representative, agent, proxy, and surrogate all do the same thing.
How a Representative Differs From Power of Attorney
The relationship between these terms confuses a lot of people. A health care representative is the person. A durable power of attorney for health care is the legal document that officially names that person. Think of it this way: the power of attorney is the paperwork, and the representative is the human being it points to.
In some states, the process is simpler than others. In Indiana, for example, simply naming a health care representative is enough without a formal power of attorney document. Most states, however, require you to complete a specific advance directive form to make the appointment legally binding.
What Decisions a Representative Can Make
A health care representative may be asked to weigh in on a broad range of medical decisions, many of them serious. These can include whether to proceed with CPR if your heart stops, whether to place you on a mechanical ventilator, and whether to continue or turn off a pacemaker or implantable defibrillator. Your representative may also make choices about comfort care, including pain management, where you receive end-of-life treatment, and whether to avoid invasive tests or procedures.
Organ and tissue donation is another area where a representative’s input may be needed. If you’ve indicated a desire to donate, life-sustaining treatment may continue briefly while organs are recovered. Your representative should know about this ahead of time so it doesn’t cause confusion or distress in the moment. Body donation to scientific research is also something you can address in your advance directive.
How Representatives Are Expected to Decide
When making choices for someone else, a representative generally follows one of two standards. The first is called substituted judgment: the representative tries to make the decision the patient would have made, based on what they know about the person’s values, preferences, and past statements. This requires genuinely knowing the patient well enough to speak on their behalf.
The second approach is the best interests standard. Here, rather than guessing at a specific decision, family and friends help explain what factors the patient would have considered and how they typically weighed options. This approach is used more often when there’s little direct evidence of what the patient would have wanted. In practice, representatives often use a blend of both, relying on whatever conversations, written instructions, and personal knowledge they have.
When a Representative’s Authority Kicks In
A health care representative has no decision-making power while you’re conscious and capable. Three conditions generally need to be met before a representative can act: you must be unable to understand the relevant information about your treatment options, unable to appreciate the foreseeable consequences of a decision (or of not making one), and unable to communicate a decision by any means. A physician or medical team makes this determination. Until that threshold is crossed, all decisions remain yours.
Who Can Serve as Your Representative
The person you choose must be a competent adult. Beyond that, the legal requirements are minimal, but the practical ones matter a great deal. Your representative should be someone who knows your values, can handle high-pressure conversations with medical staff, and will advocate for what you want rather than what they personally prefer.
You don’t have to choose a family member. A trusted friend can serve in this role. However, most states impose a few restrictions on who can witness the signing of the document. In Florida, for instance, the person you’re naming as your surrogate cannot also serve as a witness, and at least one of the two required witnesses cannot be your spouse or blood relative. If you’re a resident of a long-term care facility in Oregon, one of your witnesses must be someone designated by the facility.
What Happens if You Don’t Name Someone
If you become incapacitated without having designated a representative, most states have a default priority list that determines who makes decisions for you. The typical order is: a court-appointed guardian first, then your spouse, then your adult children (often by majority agreement if there are several), then a parent, then adult siblings, then other adult relatives who have been closely involved in your life, then a close friend. At the very bottom of the list, some states allow a licensed clinical social worker selected by a hospital ethics committee to fill the role.
This default hierarchy works, but it can lead to delays and disagreements. Naming someone yourself avoids ambiguity and ensures the person making decisions is someone you actually trust with that responsibility.
How to Make the Appointment Official
The exact requirements depend on your state, but most require you to complete a durable power of attorney for health care form (or your state’s equivalent advance directive). You’ll sign the document in the presence of two adult witnesses, or in some states, you can have it notarized instead. Oregon, for example, accepts either option. Some states require both.
Once the form is signed and witnessed, give copies to your representative, your doctor, and any close family members who should know about the arrangement. The original should be stored somewhere accessible, not locked in a safe deposit box where no one can reach it during an emergency.
Changing or Revoking Your Representative
You can change your health care representative at any time, as long as you still have the mental capacity to do so. The process is straightforward: fill out a new form and inform your medical team and family about the change. In Minnesota, the law spells out several ways to revoke the appointment. You can destroy the original document, write and sign a dated statement revoking it, verbally state your intent to revoke in front of two witnesses, or simply execute a new directive that conflicts with the old one.
One automatic trigger worth knowing: in several states, if you divorce or begin dissolution proceedings, your ex-spouse’s appointment as your representative is automatically revoked unless your directive specifically says otherwise. This is easy to overlook during the chaos of a separation, so it’s worth updating your paperwork during any major life change.
What Happens When People Disagree
Conflicts sometimes arise between a representative and the medical team, or between a representative and other family members who feel they should have a say. Hospitals handle these situations through structured processes: team-based discussions, consultations with hospital ethicists, and formal reviews by hospital ethics committees. These committees exist specifically to mediate disagreements and help all parties reach a resolution that respects the patient’s wishes and well-being. After difficult cases, medical teams often hold debriefings to review what happened and identify ways to handle similar situations better in the future.
The best way to prevent these conflicts is to have detailed conversations with your representative long before a crisis occurs. Tell them what matters to you, what kind of care you would or wouldn’t want, and how you’d weigh quality of life against length of life. The more specific you are, the easier their job becomes.