POLST and Advance Care Planning in New Mexico

Your mother has an advance directive on file — she signed it three years ago. Then she collapses at home and the paramedics arrive. They ask for a POLST form. You hand them the advance directive. They shake their heads: "We need a POLST — this doesn't tell us what to do right now."

Advance directives and POLST forms serve fundamentally different purposes in New Mexico's medical system, and understanding the difference can determine what happens in the first minutes of a medical emergency.

What a POLST Form Is

POLST stands for Provider Orders for Life-Sustaining Treatment (some states call it MOLST or POST). In New Mexico, the POLST is a standardized, brightly colored medical order form — not a legal planning document. It is signed by a physician, nurse practitioner, or physician assistant, and it translates a patient's treatment preferences into actionable medical orders that emergency responders can follow immediately.

A POLST form typically addresses:

• Cardiopulmonary resuscitation (CPR): Attempt resuscitation or allow natural death (DNR)
• Medical interventions: Full treatment, selective treatment (IV fluids and medications but no intubation), or comfort measures only
• Artificially administered nutrition: Long-term feeding tube use, trial period, or no artificial nutrition

Because it is a medical order — not an advance planning document — EMS crews, emergency room physicians, and nursing facility staff can act on a POLST immediately without verifying legal authority or contacting a healthcare agent.

How POLST Differs From an Advance Directive

An Advance Health-Care Directive under New Mexico's Uniform Health-Care Decisions Act (NMSA 1978 §§ 24-7A-1 to 24-7A-18) is a legal document that does two things: it names a healthcare agent (someone authorized to make medical decisions when the parent loses capacity) and it records the parent's general treatment preferences (living will provisions).

The key differences:

An advance directive without a POLST leaves a gap: if your parent is found unresponsive at home, EMS is legally required to attempt full resuscitation unless a valid POLST or DNR order is physically present at the scene. The advance directive may be in a safe deposit box, in an attorney's office, or in the hospital's electronic records — none of which help the paramedics standing in your mother's living room.

When Your Parent Needs a POLST

A POLST form is appropriate when a patient:

• Has a serious, life-limiting illness (advanced cancer, end-stage heart failure, late-stage dementia)
• Is likely to need emergency medical services in the near future
• Has clear treatment preferences that should be honored immediately by first responders
• Resides in a nursing facility or assisted living community (most NM facilities require a POLST on admission)

A POLST is not intended for healthy adults doing routine advance planning. For those individuals, an advance directive is the right document.

How to Get a POLST in New Mexico

The POLST conversation happens between the patient (or their healthcare agent, if capacity is lost) and the treating physician. The physician reviews the patient's medical condition, discusses treatment options, and completes the POLST form based on the patient's expressed wishes.

The form must be signed by the physician. The patient (or their authorized representative) also signs to confirm the conversation occurred. The completed POLST should be:

• Kept in a visible location at the patient's residence (the refrigerator door is the standard recommendation for EMS access)
• Filed in the patient's medical record at their primary care clinic
• Sent with the patient during any hospital or facility transfer
• Updated whenever the patient's condition or treatment preferences change — a POLST is not a permanent order

The Relationship Between POLST and Legal Authority

If your parent still has capacity, they direct the POLST conversation themselves. No power of attorney or guardianship is needed — the patient speaks directly with their physician.

If your parent has lost capacity, the healthcare agent designated in their Advance Health-Care Directive can participate in the POLST conversation and authorize the form on the patient's behalf. If no advance directive exists, New Mexico's statutory surrogate hierarchy (spouse, then adult children by majority, then parents, then siblings) determines who can authorize the POLST.

If no family member is available and no legal documents exist, the physician may complete a POLST based on the patient's previously expressed wishes and the physician's clinical judgment — but this is a last resort that often leads to disagreements among family members.

Planning Both Documents Together

The strongest approach is to complete both an advance directive and a POLST at the same time, during a conversation with your parent's primary care physician. The advance directive handles the legal framework (who makes decisions, what values guide those decisions), and the POLST translates those values into specific medical orders for emergency situations.

The New Mexico Power of Attorney & Guardianship Kit covers the Advance Health-Care Directive, healthcare agent designation, and the relationship between advance planning documents and medical orders — so your family has a complete care planning framework, not just isolated forms.

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