Who Can Make Medical Decisions for a Parent in PEI

The Default Priority List

When your parent hasn't signed a health care directive naming a proxy, PEI's Consent to Treatment and Health Care Directives Act still provides a path for medical decisions. Health practitioners turn to a statutory priority list and work down until they find someone willing, available, and capable:

1. Spouse or common-law partner (not legally separated)
2. Child (age 16 or older, in recent contact)
3. Parent
4. Sibling
5. Grandparent
6. Grandchild
7. Nephew or niece
8. Public Guardian and Trustee (last resort)

The person must be at least 16, mentally capable of making the decision at hand, willing to act, and must have been in recent contact with the patient. If the first-priority person is unavailable, unwilling, or incapable, the practitioner moves to the next level.

The Sibling Deadlock Problem

Here's where the default system breaks down in practice. If your parent has three adult children and no spouse, all three children sit at the same priority level. When they disagree — one wants surgery, another wants palliative care, the third hasn't returned calls from the hospital — the default decision-makers must reach a majority agreement.

Two siblings who disagree with the third can technically proceed, but the dissenting sibling may challenge the decision. If no majority emerges, the care team is stuck waiting for resolution while your parent is in a hospital bed without clear consent for the next step in their treatment.

A health care directive solves this completely by naming one specific proxy. That person has sole authority. Siblings can express their views, but the proxy makes the final call based on the parent's documented wishes.

What Default Decision-Makers Cannot Do

The statutory list gives authority over medical treatment consent — but it's a narrow authority. A default decision-maker from the priority list cannot:

• Sign long-term care residency contracts — that's a personal decision, not a medical one
• Manage banking transactions or pay bills — that requires a financial power of attorney
• Sell real estate — property transactions need a specific legal instrument
• Decide who can visit the parent — that's a personal care matter under a personal directive
• Consent to Medical Assistance in Dying (MAiD) — prohibited for both proxies and default decision-makers
• Consent to non-therapeutic sterilization or medical research — explicitly barred by the Act

Families often discover these limits during hospital discharge. The adult child who's been consenting to medical treatment at the bedside tries to sign the paperwork for a nursing home transfer and learns that their default authority doesn't extend that far.

Named Proxy vs. Default: Why It Matters

A proxy named in a health care directive has the same authority over medical decisions as a default decision-maker, but with three advantages:

Clarity. There's no ambiguity about who decides. The hospital doesn't need to work through the priority list or confirm recent contact.

Speed. In an emergency, every hour spent locating the right default decision-maker and confirming their eligibility is an hour of delayed treatment consent.

Specific instructions. The parent can include treatment preferences directly in the directive — comfort care preferences, resuscitation wishes, views on ventilation. Default decision-makers have no documented guidance to work from.

Setting Up the Right Coverage

Medical decisions are only one category. For comprehensive coverage of an aging parent's affairs, PEI's legal framework requires three separate documents:

• A health care directive naming a proxy for medical consent
• A personal directive naming an agent for housing, daily care, and social decisions
• An enduring power of attorney naming an attorney for financial management

Our PEI Power of Attorney & Personal Directive Kit bundles all three, fully updated for the 2025 legislation, so your family has clear authority across every category of decision-making before a crisis forces you into the default system.

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