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Living Will vs. Medical Power of Attorney

The Law Office of Geoffrey Fong Feb. 13, 2025

Old man with attorney signing estate planning documentHealthcare decisions are among the most critical aspects of estate planning, and they often require legal tools to make sure that one’s wishes are respected. In California, two commonly used legal documents serve this purpose: the living will and the medical power of attorney (also known as an Advance Health Care Directive in the state of California). 

While these documents share the goal of guiding medical decision-making, they differ significantly in their scope, purpose, and implementation. This article explores the distinctions between a Living Will and a Medical Power of Attorney in California, offering guidance on their legal nuances and practical applications.

Planning for future medical care can be overwhelming, but understanding your options is a vital step toward peace of mind. Both a Living Will and a Medical Power of Attorney allow you to retain control over critical healthcare decisions, even in situations where you might be unable to voice your preferences. 

By clearly outlining one’s wishes and appointing trusted decision-makers, one can reduce the emotional burden on their loved ones and make sure that their values guide their medical care. The Law Office of Geoffrey Fong helps its clients explore the challenges of these documents to make informed choices tailored to their specific estate planning needs in Rocklin, California.

The Basics of Living Wills and Medical Power of Attorney

To begin, the basics of living wills and medical power of attorney in terms of estate planning will be discussed.

What Is a Living Will?

A living will is a written document that outlines an individual’s preferences for medical treatment if they become incapacitated or unable to communicate their wishes. It typically addresses end-of-life care, such as whether to use life-sustaining treatments like artificial ventilation, feeding tubes, or resuscitation. A living will allows individuals to do the following:

  • Specify which treatments they want or don’t want.

  • Provide clarity for their healthcare providers and family members.

  • Make sure that their wishes are followed even if they’re unable to speak for themselves.

What Is a Medical Power of Attorney?

A medical power of attorney, otherwise known as the Advance Health Care Directive in California, is a legal document that designates a trusted individual, known as an agent or healthcare proxy, to make medical decisions on an individual’s behalf. 

Unlike a living will, which provides specific instructions, a medical power of attorney empowers the agent to make decisions based on their preferences, values, and preferred interests. These documents are pivotal parts of estate planning that should be documented prior to a medical event.

Key Differences Between a Living Will and Medical Power of Attorney

Additionally, there are several key differences between a living will and medical power of attorney, including the following:

Scope of Authority

  • Living will: Limited to specific medical treatments, primarily focusing on end-of-life care. It’s static and does not adapt to unforeseen circumstances.

  • Medical power of attorney: Broad authority to make healthcare decisions, including situations not explicitly addressed in a Living Will. The agent can respond dynamically to new medical information and scenarios.

Flexibility

  • Living will: Inflexible once signed, as it can’t anticipate every possible medical situation.

  • Medical power of attorney: Highly flexible, allowing the agent to consider the current context and consult with medical professionals to make informed decisions.

Decision-Making Process

  • Living will: Relies solely on the written preferences of the individual.

  • Medical power of attorney: Delegates decision-making to a trusted person who can interpret the individual’s wishes and values.

Applicability

  • Living will: Primarily used in terminal or irreversible conditions.

  • Medical power of attorney: Applies to a wide range of medical situations, not limited to end-of-life care.

Legal Regulations in California

Furthermore, California law governs these documents under the California Probate Code (Sections 4600-4806), which provides clear guidelines for creating, executing, and implementing both living wills and medical powers of attorney, according to California Legislative Information. Here are some essential legal considerations:

Advance Health Care Directive

In California, the Advance Health Care Directive combines the functions of a living will and a medical power of attorney. It allows individuals to:

  1. Specify their healthcare preferences (Living Will component).

  2. Designate an agent to make decisions (Medical Power of Attorney component).

Requirements for Validity

  1. The individual must be 18 years or older and mentally competent.

  2. The document must be signed by the individual and either notarized or witnessed by two adults.

  3. Witnesses can’t be healthcare providers or employees of the facility where the individual is receiving care.

Benefits and Limitations

When comparing living wills and medical powers of attorney, the benefits and limitations of each must be considered.

Living Will

The benefits of a living will include the following:

  • Provides clarity and guidance for specific medical situations.

  • Reduces the emotional burden on family members.

  • Makes sure of personal autonomy in end-of-life decisions.

Limitations of a living will include the following:

  • May not cover all possible medical scenarios.

  • Can lead to ambiguity if the language is vague.

  • Lacks flexibility in unforeseen circumstances.

Medical Power of Attorney

The benefits of medical power of attorney include the following:

  • Empowers a trusted individual to make decisions in real time.

  • Adaptable to a wide range of medical situations.

  • Makes sure that decisions align with the individual’s values and preferences.

Limitations of medical power of attorney include the following:

  • Requires selecting a reliable and capable agent.

  • Potential for conflicts among family members if the agent’s decisions are disputed.

  • Relies on the agent’s understanding of the individual’s wishes.

Practical Tips for Choosing Between the Two

In this section, practical tips for choosing between these two estate planning documents will be considered.

Assess Your Needs

  • If you want specific medical instructions documented, a Living Will may suffice.

  • If you prefer a trusted person to handle decisions, choose a Medical Power of Attorney.

Combine Both Documents

In California, combining a Living Will with a Medical Power of Attorney through an Advance Health Care Directive offers comprehensive coverage.

Choose Your Agent Wisely

Select someone who:

  • Understand your values and preferences.

  • Can handle high-pressure situations.

  • Will communicate effectively with healthcare providers.

Review and Update Regularly

Medical preferences and personal circumstances may change over time. It’s recommended that individuals review their documents periodically to make sure that they reflect their current wishes.

Case Studies

Finally, practical medical estate planning case studies will be outlined.

Case Study 1: Rigid Living Will

Sarah, a 68-year-old California resident, created a Living Will specifying that she did not want to be placed on a ventilator. After a car accident, she was unconscious, but her condition was reversible with temporary ventilation. Her Living Will’s rigidity led to confusion and delays in treatment.

Case Study 2: Effective Medical Power of Attorney

John appointed his daughter, Emily, as his healthcare agent through a Medical Power of Attorney. When John experienced complications during surgery, Emily consulted with doctors and authorized treatments that aligned with his values and previous conversations. Her decisions made sure that he received appropriate care.

Reach Out to the Law Office of Geoffrey Fong 

Choosing between a living will and a medical power of attorney depends on individual preferences and circumstances. While a living will provides clear instructions, a medical power of attorney offers the flexibility needed for comprehensive planning. The Law Office of Geoffrey Fong serves clients in Rocklin, California; Roseville, California; Folsom, California; and Citrus Heights, California. Contact the firm today for more information.