Final answer:
A treatment plan can indeed involve withholding or withdrawal of treatment, and this is true. Ethical considerations come into play, particularly under the framework of utilitarian ethics. Voluntary and nonvoluntary passive euthanasia are two contexts in which treatment may be withheld.
Step-by-step explanation:
A plan of treatment may indeed include the withholding or withdrawal of treatment in light of the person's health condition. This statement is true. One aspect of such decisions involves ethical considerations, which can be informed by principles such as utilitarian ethics. The utilitarian approach to ethics focuses on the outcomes of actions and chooses actions that result in the greatest good for the greatest number.
Voluntary passive euthanasia is a form of this, where a patient's decision for withholding life-sustaining measures is articulated through an advanced directive, such as a DNR (Do Not Resuscitate) order. This can be considered when the patient’s quality of life is deemed to deteriorate even with treatment. Conversely, nonvoluntary passive euthanasia occurs without the patient's consent, often when the patient is not in a position to make their wishes known. Such decisions are fraught with moral and ethical considerations that healthcare professionals must navigate, often informed by ethical theories including utilitarianism.