1. What are some of the screening tools you can use to determine cognitive impairment in the ED? Select all that apply.
2. Which of the following tests is NOT indicated on a routine basis in every delirious patient evaluated in the ED?
3. A 72 year old man presents to the ED with a two-day history of altered mental status. His wife tells you, “sometimes he doesn’t seem so bad but other times he is really out of it”. On physical exam, he is afebrile with normal vital signs. He is somewhat anxious but oriented to person, place, and year. He seems easily distracted and has trouble focusing on the interview. You perform a comprehensive evaluation that consists of a head CT, lumbar puncture, ECG, chest x-ray, and a comprehensive set of labs including a metabolic and infectious workout -- all of which are unremarkable. What is the next step in management of this patient?
4. Approximately what proportion of delirium is recognized by ED physicians?
5. Mr. Jackson is an 89-year-old man who presented to the emergency department with delirium. He was not recognized as delirious by the ED physician, he appeared well with stable vital signs. After a brief and unremarkable evaluation, he was discharged home. Which statement best described Mr. Jackson's 90-day mortality risk based on the presence of his delirium?