How do you appoint someone to make health or medical treatment decisions on your behalf in NSW?

How do you appoint someone to make health or medical treatment decisions on your behalf in NSW?

As part of your end of life plan it is a good idea to appoint someone to make health or medical treatment decisions for you, if you become unable to make such decisions for yourself. It is also important to identify what your values, life goals and preferred outcomes are so the person appointed to make those health and medical treatment decisions can ensure their decision making is in line with your wishes.