Defined by international consensus as: 'A process that supports adults at any age or stage of health in understanding and sharing their personal values, life goals, and preferences about future medical care. The goal of an advance care plan is to help ensure that people receive medical care that is consistent with their values, goals and preferences during serious and chronic illness.' See Defining advance care planning for adults (Sudore et al. 2017).

Advance care planning with people who may lack mental capacity in the future is a voluntary process of discussion about future care between the person and their care providers. If the person wishes, their family and friends may be included in the discussion. With the person's agreement this discussion is documented, regularly reviewed and communicated to key persons involved in their care.

A voluntary process of discussion about what care a person would or would not want in the future, if they were unable to make decisions because of illness or a lack of mental capacity to consent. The person may also choose to involve their family members or friends in discussions.

Thinking ahead about your wishes and preferences for your future treatment and care, and making sure that other people know what you want. It is an opportunity to think about what is important to you, and to let other people know about things you would - or would not - like to happen as you approach the end of your life. SEE ALSO: Advance statement