Dementia, delirium and depression (also referred to as the 3 Ds) account for the majority of negative mental and cognitive health outcomes in older adults. This presentation will provide context, baseline information and challenges relating to the differentiation of the 3 Ds in individuals with behavioral issues. None of these conditions are a normal part of the aging process, but they are common and can be challenging to figure out because of overlapping symptoms and behaviors. One of the symptoms that make it so challenging are the cognitive impairments that may accompany all three of the “Ds”. We will take a look at each condition and related screening tools separately and then discuss overlapping issues and concerns.