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A health care proxy is a person legally chosen to make medical decisions on your behalf if you become unable to communicate or make decisions yourself. Also known as a health care agent or representative, a proxy can play an important role in advance care planning by helping ensure that your medical preferences are understood and respected. The proxy's authority can vary by state and by the terms of the legal document used to appoint them. This guide explains what a health care proxy is, what rights and responsibilities the role involves, how to choose the right person, how a proxy differs from a living will and financial power of attorney, and what happens if you do not have one.
Planning for a serious illness or medical emergency can feel uncomfortable, especially when the decisions involve situations that may be difficult to predict. Yet one of the most important questions in advance care planning is also one of the simplest: who should make health care proxy decisions for you if you become unable to make them yourself?
A health care proxy is a person chosen to make medical decisions on your behalf when you are unable to communicate or make those decisions yourself. Depending on the state and the document used, this person may also be called a health care agent, representative, surrogate, or patient advocate. A health care proxy is generally designated through an advance directive or a durable power of attorney for health care.
The purpose of a health care proxy is not to take away your control over medical decisions while you are capable of making them. Instead, the arrangement is designed to provide a decision-maker if an accident, illness, unconsciousness, or another condition prevents you from expressing your wishes.
The authority of a health care proxy is not unlimited. State law, the language of the legal document, your stated wishes, and the circumstances surrounding your medical care can all affect what the proxy may do. Some states also use different terminology and have different requirements for creating and witnessing health care directives.
Understanding how a health care proxy works can help people make informed decisions about advance care planning and communicate their wishes before a crisis occurs.
A health care proxy is a person legally designated to make health care decisions for another person when that person is unable to make or communicate those decisions.
The person appointing the proxy may be called the principal, patient, or another term depending on the state's law. The person selected to make decisions may be called the health care proxy, health care agent, health care representative, or surrogate.
The basic concept is the same: you choose someone you trust to speak for you about medical care if you cannot speak for yourself.
For example, imagine that someone is seriously injured in an accident and is unconscious. Doctors need information about the person's medical preferences and may eventually need decisions about treatment. If the person previously named a health care agent under a valid document, that agent may be able to communicate with the medical team and make decisions within the authority granted by the document and applicable law.
A health care proxy is therefore part of advance care planning. Advance care planning involves thinking about future medical decisions, discussing personal values and preferences, and putting appropriate legal documents in place before a situation arises in which a person cannot communicate.
The arrangement becomes particularly important because family members may not always agree about what a patient would have wanted. Choosing a proxy in advance gives the patient an opportunity to identify the person who should speak on their behalf rather than leaving the decision entirely to circumstances or default state rules.
A health care proxy generally does not make medical decisions simply because the document has been signed.
The authority typically becomes relevant when the person who appointed the proxy is unable to make or communicate their own health care decisions. The exact triggering standard can vary according to state law and the wording of the applicable document.
This distinction is important.
If you are conscious, capable of understanding your medical situation, and able to communicate your decisions, you generally remain the person making your own health care choices. A proxy does not normally replace your decision-making authority simply because you appointed one.
For instance, if you are admitted to a hospital and can communicate with your doctors, you ordinarily continue making decisions about your treatment. If a later medical event leaves you unable to communicate, the designated health care agent may then step into the role provided by the applicable legal document and state law.
The purpose is therefore not to give another person permanent control over your medical care. It is to create a system for decision-making during periods when you cannot make decisions yourself.
Some legal documents can also specify the scope of the proxy's authority. Depending on state law, a person may be able to give the agent broad authority over medical decisions or establish specific limitations and instructions.
The terms health care proxy, advance directive, living will, and durable power of attorney for health care are sometimes used interchangeably in everyday conversation, but they can refer to different things.
An advance directive is a broader category of legal documents used to communicate a person's wishes about future medical care. The National Institute on Aging identifies a living will and a durable power of attorney for health care as two common forms of advance directives.
A living will generally provides written instructions about certain types of medical treatment and care, particularly in circumstances involving serious illness, incapacity, or end-of-life decisions.
A durable power of attorney for health care generally appoints another person to make health care decisions if the individual cannot make or communicate those decisions.
In simple terms, a living will can say, "These are the treatments I would or would not want under certain circumstances," while a health care proxy arrangement can say, "This is the person I trust to make decisions for me if I cannot."
The two approaches can also work together.
A person may provide written instructions about their preferences while appointing a trusted individual to handle situations that the written instructions cannot anticipate. The National Institute on Aging notes that a health care proxy can be chosen in addition to or instead of a living will, depending on the person's planning approach and applicable law.
Because terminology and legal requirements differ among states, people should use the documents recognized in their jurisdiction rather than assuming that a form from another state will automatically satisfy local requirements.
The primary role of a health care proxy is to make or communicate medical decisions when the patient cannot do so.
The precise authority depends on state law and the governing document, but common responsibilities can include discussing the patient's condition with health care providers, considering treatment options, consenting to or refusing certain treatments, and helping ensure that the patient's known wishes are respected.
A proxy may need to make decisions involving:
The proxy may also need access to medical information necessary to make informed decisions. Depending on the document and applicable law, this can include access to medical and hospital records.
The role is therefore more than simply answering a phone call from a hospital. A proxy may need to understand the patient's preferences, communicate with physicians, ask questions, evaluate information, and make difficult decisions under stressful circumstances.
A health care proxy's rights depend on the authority granted under the relevant legal document and the laws of the state involved.
Where the proxy has valid authority, they may generally have the right to receive information necessary to make health care decisions and communicate with medical professionals on the patient's behalf. They may also be able to consent to or refuse certain treatments within the scope of their authority.
However, being a health care proxy does not necessarily give someone unlimited authority over every aspect of another person's life.
A health care proxy is fundamentally different from a person appointed to manage someone's money.
For example, a health care agent generally does not automatically gain authority over:
Financial authority generally requires a separate legal arrangement, such as an appropriate financial power of attorney, depending on the circumstances and state law. MedlinePlus specifically distinguishes the authority of a health care agent from authority over money and financial affairs.
The scope of a proxy's authority can also be limited by the patient's instructions. A person may provide preferences concerning specific treatments, require consultation with certain people, or establish other limitations where permitted by state law.
Being appointed as a health care proxy is a serious responsibility.
The proxy should generally make decisions based on the patient's wishes, values, and applicable instructions rather than simply choosing whatever the proxy personally prefers.
This distinction can become difficult when the patient has not provided specific instructions for an unexpected medical situation.
Suppose a patient has clearly expressed that they value comfort-focused care under certain circumstances. If a medical emergency later creates a decision that was not specifically addressed in the patient's written directive, the proxy may need to consider the person's broader values and preferences when discussing the options with doctors.
The National Institute on Aging advises people serving as health care proxies to understand the person's values and wishes and be prepared to advocate for them, including when family members disagree.
A proxy's responsibilities may therefore include several different tasks.
The first responsibility is communication before a crisis occurs.
A person should talk with the prospective proxy about their values, medical preferences, and concerns. This can include discussions about serious illness, life-sustaining treatment, quality of life, and other matters that may influence future decisions.
The more the proxy understands the person's wishes, the easier it may be to make decisions when an unexpected situation arises.
A proxy may need to speak directly with doctors, nurses, hospitals, and other health care professionals.
That can mean asking questions about:
The proxy does not need to become a medical professional. Instead, the role is to understand enough information to make decisions within the person's wishes and authority.
A proxy may need to ensure that the patient's preferences are communicated clearly to the health care team.
This can become particularly important when multiple providers are involved or when family members have different views about treatment.
The proxy's role is to represent the patient rather than to become the person whose preferences automatically control the situation.
A health care proxy should understand what the legal document actually authorizes.
Not every proxy has identical powers, and state law can impose restrictions on particular medical decisions.
For example, MedlinePlus notes that state law can affect whether a health care agent may refuse or withdraw certain life-sustaining treatments or make certain other decisions.
When the situation involves a significant legal or medical question, the proxy may need to seek appropriate professional guidance.
Potentially, yes, but the exact authority varies by state and the patient's advance care documents.
Life-sustaining treatment can include medical interventions intended to prolong life when the body cannot maintain essential functions without assistance. Depending on the circumstances, decisions can involve mechanical ventilation, resuscitation, artificial nutrition, or other treatments.
A health care proxy may be authorized to make decisions concerning these treatments when the patient cannot do so. However, the legal authority to refuse or withdraw particular treatments can vary by jurisdiction and by the terms of the advance directive.
This is one reason conversations between the patient and proxy are so important.
A document may not anticipate every medical scenario. A proxy who understands the patient's values can be better prepared to communicate what the patient would likely want.
The proxy should also understand that medical decisions involving life-sustaining treatment can be complex. They may require discussions with physicians about the patient's condition, prognosis, treatment alternatives, and goals of care.
The answer depends on the state, the documents involved, and the specific circumstances.
Generally, a proxy is expected to follow the patient's known wishes rather than simply replacing those wishes with personal preferences.
A living will can provide direct instructions about certain medical treatments. A health care agent may then help ensure those instructions are followed and may make decisions in circumstances that the written instructions do not specifically address.
The relationship between a living will and health care agent can therefore be complementary.
For example, a person might write that they do not want certain life-sustaining treatment under specified circumstances and also appoint a health care agent to make decisions about situations not covered by the written instructions.
Because state laws differ, it is important not to assume that a health care proxy has unrestricted authority to override a written directive.
The safest approach to advance care planning is generally to make the documents consistent with one another and discuss the intended approach with the person appointed as proxy.
Eligibility requirements vary by state.
In many states, an adult can serve as a health care proxy, although some states have different age requirements. The National Institute on Aging notes that most states generally require a proxy to be at least 18, while Alabama and Nebraska generally use a minimum age of 19. State laws can also impose restrictions on certain relationships or health care providers.
A proxy can often be:
The best choice is not necessarily the closest relative.
A good proxy should be someone who understands the person's values, can communicate effectively, is willing to make difficult decisions, and can advocate for the patient even when other people disagree.
The person should also be willing to accept the responsibility.
Someone may love you deeply but still not be comfortable making medical decisions under pressure. That does not necessarily make them a bad person; it may simply mean another person is better suited to the role.
Restrictions can apply to health care providers serving as health care agents.
The National Institute on Aging notes that state requirements vary and identifies circumstances in which certain health care providers or people connected to a health care facility may be restricted from serving as a proxy.
The reason for these restrictions can include concerns about conflicts of interest.
Because the rules differ by state, a person should check the requirements that apply where the advance directive is being created.
Rather than assuming that anyone can legally serve, the person completing the document should use the appropriate state form and follow its eligibility rules.
Naming an alternate or backup proxy can be useful.
The primary proxy may be unavailable, unwilling to serve, unreachable during an emergency, or legally unable to act under the circumstances.
A backup proxy gives the advance care plan another person who can potentially step into the role if the primary choice cannot serve.
For example, someone might name a sibling as the primary proxy and another trusted relative as the alternate. The exact arrangement and number of alternate agents permitted can depend on state law and the form being used.
The important point is to think beyond the first choice.
Before naming an alternate, the person should also be asked whether they are willing to accept the responsibility.
Choosing a health care proxy requires more than asking, "Who is closest to me?"
The person should consider trust, communication, availability, emotional resilience, and willingness to advocate.
Medical decisions can involve highly personal information and difficult choices.
The proxy may hear information about diagnoses, treatment options, prognosis, and end-of-life preferences.
Trust is therefore fundamental.
The proxy should be able to distinguish between what they personally want and what you have expressed as your wishes.
The National Institute on Aging recommends considering whether the person will honor your wishes and whether they can handle disagreements with family members or health care providers.
Medical environments can be stressful.
The proxy may need to ask doctors questions, request clarification, compare treatment options, and communicate decisions.
Someone who is willing to speak up respectfully can be valuable in this role.
A medical emergency can happen unexpectedly.
Consider whether the person can realistically be reached if you are hospitalized or unable to communicate.
Living far away does not automatically prevent someone from serving, but distance may create practical challenges.
Do not assume someone will accept the responsibility.
Talk with the person first.
Explain what the role means, discuss your general wishes, and ask whether they are comfortable serving.
This conversation can also reveal whether you and the prospective proxy have different expectations about medical treatment.
The process depends on state law.
Generally, a person uses the appropriate state advance directive or durable power of attorney for health care form, identifies the person they want to appoint, and completes the required execution procedures.
Some states require witnesses. Others may require notarization or have additional formalities. The requirements can differ significantly, so using the correct state-specific form is important.
Creating the document is only one part of the process.
After signing it, the person should make sure the relevant people know that it exists.
Copies may be provided to:
The National Institute on Aging recommends giving the proxy and health care providers copies of the relevant advance care documents and keeping the information accessible.
If a person becomes unable to make medical decisions without an appointed health care agent, state law may determine who is authorized to make decisions.
The default decision-maker can vary.
Depending on the jurisdiction and circumstances, state law may give priority to a spouse, adult children, parents, or other relatives. In some situations, a court-appointed guardian or another person may become involved.
The National Institute on Aging explains that state laws determine who may make health care decisions when a person cannot do so and has not established an advance directive.
This is one reason advance care planning can be useful.
Without a designated person, family members may disagree about what the patient would have wanted. A designated proxy can provide a clearer decision-making structure.
Family members do not necessarily have the authority to override a valid health care proxy simply because they disagree with the agent.
The exact legal rules depend on the state, the validity and scope of the document, and the circumstances.
A proxy's authority comes from applicable law and the legal appointment, not simply from being the patient's relative.
This is another reason for families to discuss advance care planning before a crisis.
If everyone understands who has been appointed and what the patient wants, disagreements may be easier to manage.
However, serious disputes can sometimes require legal intervention, particularly when there are questions about the validity of the document, the patient's capacity, the agent's authority, or whether the agent is acting appropriately.
A person can generally change their health care proxy while they have the legal capacity to do so, although the exact procedure varies by state.
The National Institute on Aging explains that people can change their health care proxy and should inform their family and health care team when the change is made.
Life circumstances can change over time.
For example, someone might initially choose a spouse but later divorce. Another person might select a friend who later moves abroad. A proxy might become ill, become unavailable, or simply no longer be the right person for the role.
For those reasons, advance care documents should not necessarily be treated as permanent paperwork that is created once and forgotten.
After a major life change, reviewing the documents can help ensure they still reflect the person's wishes.
There is no universal rule requiring everyone to update a health care proxy on a particular schedule, because state requirements and personal circumstances differ.
However, regular review is sensible.
The National Institute on Aging recommends reviewing advance directives at least annually and updating them after major life events such as moving to another state, retirement, or significant changes in health.
A review can address several questions:
If a new document replaces an older one, the people who may rely on the old document should be informed.
A health care proxy and financial power of attorney serve different purposes.
A health care proxy generally concerns medical decisions.
A financial power of attorney generally concerns financial or legal matters, such as managing bank accounts, paying bills, handling property, or dealing with financial institutions.
One document does not automatically give the agent authority provided by the other.
For example, if someone becomes incapacitated after an accident, their health care proxy may be able to communicate with doctors and make authorized medical decisions, while a person appointed under a financial power of attorney may handle financial matters.
The distinction is important because incapacity planning often involves more than health care.
An individual may need to consider both medical and financial decision-making documents as part of a broader estate and incapacity plan.
The difference between a health care proxy and a living will can be summarized by their primary functions.
A living will communicates the person's preferences about certain medical treatments.
A health care proxy appoints someone to make decisions when the person cannot.
A living will can provide specific instructions, while a proxy can potentially address situations that were not anticipated in the written instructions.
For example, a living will might address preferences concerning life-sustaining treatment under particular conditions. A proxy may then need to discuss an unexpected medical situation with the health care team and make a decision based on the patient's broader wishes.
Both can therefore play a role in advance care planning.
Being a health care proxy can involve emotionally difficult choices.
The person may be asked to make decisions about treatments that could have significant consequences.
The first step should generally be to understand the patient's wishes.
If the patient's preferences are clearly documented, the proxy can use those instructions as a guide.
If the situation is not specifically addressed, the proxy may need to consider the patient's values and previously expressed wishes while discussing the medical situation with the health care team.
Medical professionals can explain the medical facts, treatment options, potential benefits and burdens, and likely outcomes. The proxy's role is generally to make decisions within the authority granted by the patient and applicable law.
The National Institute on Aging emphasizes that serving as a proxy can involve sensitive discussions, difficult decisions, advocacy, and disagreement with other family members.
This is why the conversation between the person and proxy is so important long before an emergency occurs.
Creating the document is useful, but several mistakes can reduce its practical value.
Do not appoint someone without first discussing the role with them.
They may not be comfortable making medical decisions or may not be available when needed.
A proxy cannot be expected to understand your preferences if you have never discussed them.
The conversation is often as important as the document.
Advance directive requirements vary.
Someone who moves from one state to another should review whether their existing documents continue to satisfy the requirements of the new jurisdiction.
If the primary proxy cannot serve, the absence of an alternate can create complications.
A legally valid document is much less useful if nobody knows where it is.
Make sure the people who may need it can locate the current version.
Divorce, marriage, death, relocation, changes in health, and other major events can make an old advance care plan inappropriate.
A health care proxy does not automatically become the person's financial agent.
Separate authority may be required for financial matters.
A health care proxy is only one component of advance care planning.
The larger goal is to prepare for situations in which a person may temporarily or permanently lose the ability to communicate their medical decisions.
That planning can include conversations with family members, discussions with health care professionals, written instructions, a living will, a health care proxy, and other documents recognized under state law.
The process also encourages people to think about their values rather than focusing only on specific medical procedures.
For example, someone may care deeply about maintaining independence, remaining comfortable, spending time at home, or pursuing treatment as long as there is a meaningful possibility of recovery. These values can help a proxy understand how to approach situations that were not specifically addressed in a document.
Advance care planning is therefore not simply paperwork.
It is a process of communicating preferences before they are urgently needed.
A health care proxy is a person chosen to make health care decisions when someone becomes unable to make or communicate those decisions themselves. The arrangement can give people greater control over who speaks on their behalf during a serious illness, accident, or other medical crisis.
The proxy's authority and responsibilities depend on the applicable state law and the document used to appoint them. A proxy may be able to discuss medical information with providers, make treatment decisions, and advocate for the patient's wishes, but the role generally does not give the agent automatic authority over finances or every aspect of the person's affairs.
Choosing the right person is therefore an important part of the process. The person should be trustworthy, willing to accept the responsibility, able to communicate effectively, and prepared to respect the patient's wishes even when difficult decisions arise.
A health care proxy can also work alongside a living will and other advance directives. Keeping these documents consistent, sharing them with the relevant people, and reviewing them after major life changes can make an advance care plan more useful when it is actually needed.
Because the legal requirements and terminology for health care proxies vary across the United States, anyone creating or updating one should use the requirements applicable in their state. For complicated circumstances, legal or professional guidance may help ensure that the documents properly reflect the person's wishes and comply with applicable law.
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