Advance Directive and Healthcare Proxy

Healthcare · §600

Two documents answer the two questions a hospital will ask when you can't: what treatment you'd want, and who decides. About 42% of older Americans lose the ability to speak for themselves before they die Silveira 2010, and the people who love you then guess your wishes from memory in a corridor, under time pressure. The forms are free in every US state and take an afternoon. What they buy isn't a longer life. It's a death your family can carry afterward instead of second-guessing for years.

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The pair splits one job in two. The living will writes down what you'd want: a breathing machine, a feeding tube, CPR if your heart stops. The healthcare proxy (some states say durable power of attorney for health care) names one person who can say yes or no for you the moment two doctors document you can't decide. Both switch on only when you can't speak, and switch off the minute you wake up and answer. The proxy does the heavier lifting: no written list covers every scenario a hospital invents, but a named person adapts.

The form alone barely moves anything. The conversation does. When families guess for a patient who never discussed it, they get the wishes wrong about a third of the time ¹. In the strongest trial, elderly inpatients got either usual care or one structured planning conversation with a nurse; among those who later died, wishes were known and followed 86% of the time versus 30%, and their surviving relatives had zero PTSD versus 15% ². Cancer patients who had the talk got gentler care near death and their caregivers were far less likely to fall into depression in grief ³. Give someone a form without the talk and nothing changes ⁴.

Do it in an afternoon. The talk is the part that matters; the paperwork just makes it binding.

Name a proxy: someone who can reach the hospital, hold steady under pressure, and know you well enough to improvise. Spouse by default, an adult child or sibling otherwise. Name a backup. Most states bar your own doctors.
Have the conversation first, at a kitchen table: CPR, ventilator, feeding tube, dialysis, ICU. For each, temporarily to recover, yes; indefinitely in a state where you don't know your family, no? Your values guide the calls you never anticipated ⁵.
Fill out your state's free form (search "[your state] advance directive form"). Five Wishes covers 46 states. A lawyer's version runs $200 to $500 and adds nothing legally.
Sign it: most states want two witnesses who aren't the proxy or your heirs; some take a notary. The form says which.
Give copies to the proxy, your doctor, and your likely hospital. Keep a scan on your phone. Revisit every 5 to 10 years and after any big diagnosis, divorce, or the proxy's death.

The payoff is lopsided. Most people who complete one never need it and die in old age with their wits about them. The minority who lose capacity, from a car crash at 40 or a long decline at the end, get the whole benefit at once. When it lands, your spouse reads instead of reconstructs, the doctor gets an answer instead of a delay, and no one argues in the corridor. A directive written at 40 may sit unused for fifty years before the afternoon you spent on it pays out.

The fine print — when to skip it, and what people get wrong

"My family knows what I want" is right about 68% of the time, worst on cases you never raised ¹. "I'm too young" fails any week a young adult lands in the ICU; if someone would have to decide for you, you're old enough. A DNR isn't a directive: it's a narrow doctor's order for cardiac arrest, valid at one institution.

The form in a drawer is useless; half of nursing-home residents with directives have none in the chart ⁶, so hand out copies. Vague words like "no heroic measures" mean nothing clinically; name the intervention. The unspoken proxy holds legal power without any idea what you wanted ¹.

No medical risk to signing. You need decision-making capacity when you sign, so a new one can't be made in moderate or advanced dementia. Many states won't let a directive refuse nutrition or hydration for a pregnant patient.

References

1Shalowitz DI, Garrett-Mayer E, Wendler D (2006). The accuracy of surrogate decision makers: a systematic review. Archives of Internal Medicine. link
2Detering KM, Hancock AD, Reade MC, Silvester W (2010). The impact of advance care planning on end of life care in elderly patients: randomised controlled trial. BMJ. link
3Wright AA, Zhang B, Ray A, et al. (2008). Associations between end-of-life discussions, patient mental health, medical care near death, and caregiver bereavement adjustment. JAMA. link
4SUPPORT Principal Investigators (1995). A controlled trial to improve care for seriously ill hospitalized patients. The study to understand prognoses and preferences for outcomes and risks of treatments (SUPPORT). JAMA. link
5Sudore RL, Lum HD, You JJ, et al. (2017). Defining advance care planning for adults: a consensus definition from a multidisciplinary Delphi panel. Journal of Pain and Symptom Management. link
6Teno JM, Gruneir A, Schwartz Z, Nanda A, Wetle T (2007). Association between advance directives and quality of end-of-life care: a national study. Journal of the American Geriatrics Society. link

Related in the handbook (4)

— The flip side of knowing how to act: your family needs your wishes on paper for the moments resuscitation can't fix.
— Both are paperwork for the moment you can't speak — keep them together where someone can find them.
— The conversation behind the form matters most — have it with the doctor who knows you.
— Both keep you in charge of your care. When a big call comes, a second opinion and a named proxy keep the decision yours.