An advance healthcare directive can appoint a designated healthcare representative to act within the authority you give if you cannot make the relevant treatment decision. The role is to help make your wishes known and effective, rather than leave healthcare professionals and relatives to guess.
This is a formal appointment. A person does not acquire the same authority merely by being described as next of kin or being the family member who usually attends appointments.
Choose someone who understands you
Look for a person who can listen carefully, remain calm and communicate clearly with healthcare professionals. They should be willing to explain your preferences even where other people disagree or find the conversation difficult.
Discuss the treatments and circumstances addressed by the directive. Ask whether they understand the reasons behind your choices and are comfortable carrying out the role. Agreement should be informed, rather than a polite response to a request they have not considered.
Be clear about the authority
The directive can give the representative specified powers to interpret your wishes and agree to treatment refusals within the legal framework. It does not give unrestricted authority over every aspect of your life, finances or care.
The representative acts only when the relevant conditions apply, including your inability to make the particular healthcare decision. Their role should not displace your own decisions while you can make them.
Check eligibility and practical arrangements
Current DSS guidance sets out eligibility restrictions, including certain convictions and care-provider relationships. Check the rules before completing the appointment; not every trusted or helpful professional is eligible.
The representative must sign the directive in the required way. Give them a copy and make sure relevant healthcare providers know about the document. An appointment is of limited practical value if nobody can find the directive or contact the person named.
The role can also involve keeping records of decisions made. Discuss that responsibility alongside the more personal aspects of the appointment.
Review your choice if the person's health, availability or relationship with you changes. If a replacement is needed, follow the proper amendment process and update the copies held by others.
A good representative does not need to agree with every choice you make. They need to understand it, respect it and be able to communicate it faithfully when you cannot do so yourself.
Sources and further reading
General information, not advice on your individual circumstances. Laws and tax rules can change; check the linked official guidance and obtain professional advice where needed.