Utility of Head Computed Tomography for Older Adults with Suspected Delirium in the Emergency Department. A Retrospective Observational Study.

CT-Head is ordered for over half of older ED patients with symptoms of delirium despite infrequent acute findings. Acute findings typically occur in the context of symptoms suggestive of intracranial abnormalities such as FND or GCS<14. This suggests physicians should be more selective when ordering CT-Heads in patients with symptoms of delirium.