Refusing Life-Sustaining Treatment in Northern Ireland

Refusing life-sustaining treatment is the highest-stakes decision you can record in a living will. Get the drafting right and clinicians are legally bound to respect your wishes. Get it wrong — vague wording, a missing clause, no witness — and your refusal has no legal force at the exact moment you need it most.

Northern Ireland's common law framework makes this both powerful and unforgiving. There's no statutory template. No government registry. Just a set of requirements that, if met, create a legally binding directive that overrides clinical judgment.

What Counts as Life-Sustaining Treatment

"Life-sustaining treatment" isn't just the dramatic interventions from television. Under the clinical definitions that NI medical teams use, it includes:

• Cardiopulmonary resuscitation (CPR) — chest compressions and defibrillation
• Mechanical ventilation — machine-assisted breathing via endotracheal tube or tracheostomy
• Clinically assisted nutrition and hydration (CANH) — tube feeding (nasogastric or PEG) and IV fluids given to sustain life
• Antibiotics for life-threatening infection — when infection would otherwise lead to death
• Dialysis — kidney replacement therapy
• Blood transfusion — where withholding would be fatal

Each of these can be individually accepted or refused in your ADRT. You don't have to refuse everything — you might want to decline CPR and ventilation but accept IV antibiotics, for example. The document should specify each treatment separately with its own refusal statement.

The Mandatory Requirements

When your ADRT refuses any life-sustaining treatment, common law imposes heightened requirements:

Written and signed. Verbal refusals of life-sustaining treatment are not legally binding under NI common law. The document must be in writing, signed, and dated by you.

The life-at-risk clause. Your document must contain an explicit statement — in clear, unambiguous language — that you refuse the specified treatment even if your life is at risk as a result. This clause is non-negotiable. Without it, clinicians will default to preserving your life.

Witnessed. An independent adult must witness your signature. The witness confirms they observed you sign the document; their role is to witness the signature, not to certify your mental capacity. The witness should not be a beneficiary of your estate or your financial attorney.

Clinical specificity. Name each treatment you're refusing using its medical term. Don't write "no life support" — specify "I refuse cardiopulmonary resuscitation" and "I refuse mechanical ventilation" as separate, explicit refusals.

Describing the Circumstances

The circumstances clause is where most self-drafted living wills fail. "If I'm terminally ill" sounds clear until a clinical team has to decide whether a patient with advanced dementia but no active terminal diagnosis qualifies.

Effective circumstance descriptions use clinical language:

Weak: "If I'm very ill and unlikely to recover."

Strong: "If I have a progressive neurological condition (such as advanced dementia, motor neurone disease, or severe stroke) where there is no reasonable prospect of recovery to a state in which I can recognise and communicate with my family."

Weak: "If I'm in a vegetative state."

Strong: "If I am in a persistent vegetative state or a minimally conscious state, as assessed by the treating clinical team, where the condition has persisted for more than four weeks."

The more precisely you describe the circumstances, the less room clinical teams have to argue that your ADRT doesn't apply to the situation at hand.

Treatments You Cannot Refuse in Advance

An ADRT cannot refuse:

• Basic nursing care — washing, turning, pain management, mouth care. These are considered comfort measures, not medical treatment.
• Treatment for a mental disorder under mental health legislation — though this is a narrow exception and doesn't override refusals of physical treatments.
• Treatments you couldn't have anticipated — if a new treatment becomes available after you drafted your ADRT, clinicians may argue your refusal doesn't extend to something you couldn't have known about.

An ADRT also cannot request specific treatments or demand interventions. It can only refuse them. And it cannot request anything illegal — euthanasia and assisted dying remain unlawful in Northern Ireland.

Talking to Your GP First

Before finalising any refusal of life-sustaining treatment, discuss it with your GP or specialist. They can help you understand the medical consequences of each refusal (what dying from respiratory failure actually involves, for instance), suggest clinically precise language, and flag any gaps between your stated wishes and the treatments you might actually face.

After the discussion, your GP surgery should scan the finalised document into your electronic health record and place an emergency alert on your file. This is critical — emergency teams arriving at your home or reviewing your records in A&E need to find the document immediately, not after a filing system search.

Our Northern Ireland Advance Decision to Refuse Treatment guide walks you through each refusal category with precise template language, a GP consultation worksheet, and a storage protocol that ensures emergency teams can find your document when minutes count.

See more Northern Ireland guides →