Living Will

A living will is a written advance instruction stating which life-sustaining treatments a person would want, or would refuse, if they lost the ability to make and communicate that decision. It is one of the two instruments federal law names as examples of an advance directive: 42 USC 1395cc(f)(3) defines an advance directive as "a written instruction, such as a living will or durable power of attorney for health care, recognized under State law." The distinction between those two examples is the whole of it. A living will records what you want. A healthcare power of attorney names who decides. The name is an unfortunate accident of history. A will disposes of property at death and is proved in probate; a living will disposes of nothing, appoints nobody, and becomes irrelevant at exactly the moment a will takes effect.

A living will is narrower than most people assume, and the narrowness is deliberate. These are creatures of state statute, and state acts typically make the instruction operative only once a defined clinical condition has been certified, most often a terminal condition or a state of permanent unconsciousness as that state's act defines them. That is a design choice rather than a defect: an instruction meant to be followed without the author present has to be triggered by something a clinician can determine. But the consequence is that a living will is silent through the overwhelming majority of medical situations, including most of the ones a family actually faces. Someone with a stroke who is confused but not dying, or a person with advancing dementia weighing a hip repair, is outside what the document addresses. Published healthcare power of attorney covers the instrument that handles those, and the two are complements rather than alternatives.

What a living will typically addresses is the set of interventions that keep a body functioning when the underlying condition will not improve: mechanical ventilation, cardiopulmonary resuscitation, dialysis, artificial nutrition and hydration, and antibiotics in a terminal course. Many state forms treat artificial nutrition and hydration as a separate election, because people who are clear about ventilation are frequently not clear about a feeding tube. Comfort care and pain relief are ordinarily provided regardless of what the document says. What may be directed, and what has to be elected separately, are matters of state law and of the particular form.

It is not a medical order, and this distinction saves real confusion. A portable medical order signed by a clinician, known in various states as a POLST or MOLST, is an actionable instruction that emergency personnel can follow at the scene. A living will is a legal document expressing the patient's wishes; it is not itself an order to a paramedic, and it is not designed to be found in an ambulance. People who want their wishes to govern in an emergency need to raise that with their clinician rather than assuming the directive covers it.

Its practical weakness is retrieval, not drafting. An instruction nobody can produce at the bedside does not operate. This is one of the reasons the appointment document usually does more work: a person can be telephoned, and a document in a safe deposit box cannot. It is also why the useful step after signing is distribution rather than storage: to the healthcare agent, to regular physicians, and into the medical record of any hospital where care is likely.

The naming point is worth one more sentence, from the other direction. Published last will and testament sets out what a will actually does, and a living will does none of it. It transfers no property, names no executor, has no residuary clause, cannot disinherit anyone, and is never presented to a probate court. A person can have one and not the other, and many people who have carefully made a will have never written a living will at all, which leaves the medical half of the plan empty.

1. Use a form valid where you live. These are state instruments, and execution formalities differ, commonly involving witnesses, a notary, or both, with restrictions on who may witness.

2. Decide the specific elections, not just the general sentiment. Ventilation, resuscitation, dialysis, and artificial nutrition and hydration are often separate choices, and a form completed in general terms leaves the same ambiguity it was meant to resolve.

3. Sign it while you have capacity. As with every document in this family, it can only be executed by someone who can still make and communicate the decision.

4. Pair it with an appointment. A healthcare power of attorney names the person who handles everything the instruction does not reach, and who interprets it where a situation is close to the line.

5. Distribute it. Copies to the agent, to physicians, and into the hospital record. Then revisit it after any significant change in health or circumstances.

A hypothetical, showing where the document ends. Bernard signs a living will stating that if he has a terminal condition with no reasonable prospect of recovery, he does not want cardiopulmonary resuscitation or continued mechanical ventilation, and, in a separate election, that he does not want artificial nutrition provided by feeding tube in that circumstance. Four years later he has a severe stroke. He cannot communicate, but he is not terminal and not permanently unconscious, so the certification the document requires has not been made and the instruction does not operate. The decision in front of the clinicians is whether to place a temporary feeding tube during rehabilitation, where recovery of swallowing is plausible. That is not the situation Bernard wrote about, and reading his election as a refusal of all feeding tubes in all circumstances would misapply it. Because he also signed a healthcare power of attorney naming his daughter, she decides, using the living will as evidence of how he thinks about the trade-off rather than as an answer to a question he never addressed. That is the ordinary case rather than the exception, and it is the argument for having both documents.

Pros

• It puts a decision in writing that families otherwise have to guess at, often while grieving and under time pressure.
• It relieves the agent of carrying the choice alone, since they are executing an instruction rather than forming a preference.
• It is inexpensive, and many states publish a statutory form.
• It gives clinicians something concrete to act on where the triggering condition has been certified.

Cons

• It is silent in most medical situations, because the trigger is narrow by design.
• Its language can be too general to resolve the actual question, particularly on artificial nutrition and hydration.
• It is not a medical order, so it does not by itself direct emergency personnel.
• It only works if it can be produced, and retrieval fails more often than drafting does.
• Recognition of an out-of-state form is a matter for the receiving state's law rather than something the document settles.