Considering that, for some health professionals, "the patient is an adult and must have his freedom of choice respected, so he does what he wants.", the professional Nurse should?

The professional Nurse should respect the patient's autonomy and right to make their own decisions about their health care. This includes providing information and support to help the patient make informed choices, even if the nurse may disagree with the decision. It is important for the nurse to maintain a non-judgmental attitude and provide care that is in the best interest of the patient, while also respecting their autonomy and right to self-determination.