Table 2.

“Dr. DRE” mnemonic for clinicians to address delirium at the bedside

Mnemonic	Clinical causes and interventions
Diseases	Evaluate the patient for new or worsening disease, such as congestive heart failure or sepsis, as well as other disease findings such as metabolic abnormalities
Drug Removal	Look for and stop deliriogenic medications including benzodiazepines, antihistamines, and inappropriate opioids
Environment	Encourage daytime mobilization and remove restraints, provide frequent reorientation as well as cues such as clocks and windows to the outside, reduce night-time interventions to promote restful sleep