||Depression and dementia may be mistaken for
each other. Patients with AD often have depressive symptoms. Nearly half of
elderly patients with reversible dementia and depression will develop
irreversible dementia within 5 years.
“The most important diagnostic tools are the informant interview and
office-based clinical assessment. Physicians should interview both the
patient and a reliable informant and inquire into the patient's current
condition, medical and medication history, patterns of alcohol use, and
living arrangements,” Small et al., 1997.