Information from NHS Choices about preparing Advance Statements or Advance Decisions.
An Advance Statement is a written statement that conveys your preferences, wishes, beliefs and values regarding your future care. The aim is to provide a guide to anyone who might have to make decisions in your best interest if you have lost the capacity to make decisions or to communicate them.
An Advance Decision (sometimes known as an advance decision to refuse treatment, an ADRT, or a living will) is a decision you can make now to refuse a specific type of treatment at some time in the future. It lets your family, carers and health professionals know whether you want to refuse specific treatments in the future. This is so that they will know your wishes if you are unable to make or communicate those decisions yourself.