Who Makes Medical Decisions for an Elderly Parent

Your parent is in the ICU, sedated after a stroke. The physician asks: "Who has authority to make medical decisions?" You and your siblings look at each other. No one is sure.

This moment happens thousands of times daily in hospitals across the country. The answer isn't "the oldest child" or "whoever's in the room" — it's determined by a specific legal hierarchy. Understanding it before a crisis prevents family paralysis when seconds count.

The Legal Hierarchy of Medical Decision-Making

When a patient cannot make their own medical decisions (due to unconsciousness, dementia, delirium, or cognitive incapacity), decision-making authority is governed by the parent's documents and applicable state surrogate law:

1. The Patient's Own Documented Wishes

If your parent previously completed an advance directive or living will, the document's treatment preferences guide decisions. The terms of the document and applicable state law control what treatments the parent wants or refuses (ventilator, CPR, feeding tube, dialysis) in various scenarios.

An advance directive may record treatment preferences and may also designate a healthcare proxy; check the document to see which it does.

2. Health Care Proxy / Durable Power of Attorney for Healthcare

This document names a specific person (the "agent" or "proxy") to make medical decisions on the parent's behalf when they cannot.

Key facts about the health care proxy:

• Its activation and scope depend on the document and applicable state law; it generally operates when a physician determines the patient lacks decision-making capacity
• The named agent is generally the designated decision-maker under the document; they should follow the patient's wishes and applicable law
• Their job is to make decisions the patient would make, not what the agent personally wants
• It can be revoked by the patient at any time while they still have capacity
• A parent should choose someone who will honor their wishes even under pressure from other family members

If your parent has a health care proxy on file, that person is generally the designated decision-maker under the document. Other siblings do not override the proxy simply by disagreeing; questions about the document or state law may require legal advice.

3. POLST (Physician Orders for Life-Sustaining Treatment)

A POLST is different from an advance directive — it's a set of active medical orders signed by a licensed clinician (physician, nurse practitioner, or physician assistant), based on the patient's current condition and wishes. It's immediately actionable by paramedics, ER staff, and hospital teams.

A POLST addresses specific treatment decisions:

• Section A: CPR or no CPR
• Section B: Full treatment, selective treatment, or comfort-focused only
• Section D: Artificial nutrition (yes/no/trial period)

The POLST doesn't name a decision-maker — it pre-answers specific clinical questions so decisions are already made when an emergency hits.

4. State Surrogate Laws (When No Documents Exist)

If your parent never signed a health care proxy, state law determines who may act. The default order varies by state; some states default to a spouse, then adult children in a defined order. Do not assume the oldest child or whoever is present controls.

The problem with default surrogacy: When multiple adult children have equal authority and disagree, the hospital often cannot act until the conflict is resolved — leaving the patient in limbo. This is exactly the scenario that tears families apart.

5. Court-Appointed Guardian (Last Resort)

If no documents exist and family members cannot agree, consult an elder-law attorney about whether a court-appointed guardian or another court process is available under the state's law. The exact procedure, timing, and cost vary by state.

Guardianship is the nuclear option. Every other path above is preferable.

What This Means for Hospice Decisions

Enrolling in hospice requires signing a Hospice Election Statement. If your parent has capacity, they sign it themselves. If they don't, the person with medical decision-making authority signs.

This is where sibling disagreements explode. The sibling who holds the health care proxy may be the person authorized to consent to hospice enrollment, subject to the document and applicable state law. This isn't a family vote — it is about respecting the parent's choice of who they trusted with this decision.

If no proxy exists and siblings disagree about hospice, the hospice agency will typically:

• Request a family meeting facilitated by their social worker
• Ask the medical team to clarify prognosis to all parties
• Require written consent from the legal surrogate under state law
• Request help from a hospice social worker, chaplain, or professional mediator

What to Do Right Now

If your parent still has mental capacity:

1. Get a Health Care Proxy signed. Use the current state form and verify the state's witness and notary requirements; an elder law attorney can help if needed.

2. Have the conversation. The proxy document names who decides, but it doesn't tell them what to decide. Your parent needs to tell their proxy: "If I'm terminally ill and can't communicate, here's what I want regarding resuscitation, ventilators, feeding tubes, and hospice."

3. Complete a POLST form if your parent is already seriously ill. This requires a licensed clinician's signature (physician, nurse practitioner, or physician assistant; state rules vary). Keep it with the parent and follow state or local EMS guidance on where to store or display it.

4. Distribute copies. The health care proxy should be on file with your parent's physician, the local hospital, and each adult child. A document locked in a safe deposit box is useless during a 3 AM emergency.

Your Next Step

The Hospice vs Palliative Care: A Family Decision Guide includes a legal authority checklist, state-by-state surrogate law reference, and a structured conversation guide to help your parent document their wishes — before a crisis makes the conversation impossible.