If a patient with Alzheimer's disease cannot be deemed competent enough to make their own medical decisions then a substitute must be found. A substitute might be

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all of the above.
If a patient with Alzheimer's disease cannot be deemed competent enough to make their own medical decisions then a substitute must be found. A substitute can include a spouse, brother, or a person granted power of attorney-also known as an agent. Who exactly will become the patient's substitute may be informed by legal jurisdiction or family virtue.

If a Patient with Alzheimer's Disease Cannot Be Deemed Competent