Tests and diagnosisBy Mayo Clinic Staff
A doctor will diagnose delirium based on medical history, tests to assess mental status and the identification of possible contributing factors. An examination may include:
Sept. 05, 2015
- Mental status assessment. A doctor starts by assessing awareness, attention and thinking. This may be done informally through conversation, or with tests or screenings that assess mental state, confusion, perception and memory.
- Physical and neurological exams. The doctor performs a physical exam, checking for signs of health problems or underlying disease. A neurological exam — checking vision, balance, coordination and reflexes — can help determine if a stroke or another neurological disease is causing the delirium.
- Other possible tests. The doctor may order blood, urine and other diagnostic tests. Brain-imaging tests may be used when a diagnosis can't be made with other available information.
- Delirium. In: Diagnostic and Statistical Manual of Mental Disorders DSM-5. 5th ed. Arlington, Va.: American Psychiatric Association; 2013. http://www.psychiatryonline.org. Accessed Sept. 2, 2015.
- Delirium. Merck Manual Professional Version. https://www.merckmanuals.com/professional/neurologic-disorders/delirium-and-dementia/delirium. Accessed June 24, 2015.
- Francis J, et al. Diagnosis of delirium and confusional states. http://www.uptodate.com/home. Accessed June 25, 2015.
- Francis J. Delirium and acute confusional states: Prevention, treatment, and prognosis. http://www.uptodate.com/home. Accessed June 25, 2015.
- So far away: Twenty questions and answers about long-distance caregiving. National Institute on Aging. https://www.nia.nih.gov/health/publication/so-far-away-twenty-questions-and-answers-about-long-distance-caregiving/support. Accessed June 24, 2015.
- Hshieh TT, et al. Effectiveness of multicomponent nonpharmacological delirium interventions: A meta-analysis. JAMA Internal Medicine. 2015;175:512.
- Takahashi PY (expert opinion). Mayo Clinic, Rochester, Minn. July 7, 2015.
- Hall-Flavin DK (expert opinion). Mayo Clinic, Rochester, Minn. July 9, 2015.