Senile dementia and informed consent

Senile dementia in the elderly is a prevalent condition which requires ongoing medical treatment. This disease causes a deterioration of cognitive processes and, consequently, it is likely to impair the capacities required to give informed consent to needed medical care. However, a diagnosis of senile dementia does not necessarily indicate that the afflicted individual is incompetent. The means of assessing competency in dementia patients and their likely impairments according to five standards is described in this paper. Recommendations for obtaining consent from the competent dementia patient are made and mechanisms for providing special protection to the incompetent patient in the consent process are discussed.