Delirium diagnostic criteria
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Delirium On the Web |
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American Roentgen Ray Society Images of Delirium |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmed Zaghw, M.D. [2]
Diagnostic Criteria
Scoring Systems for the Diagnosis of Delirium in Critically Ill Patients
Confusion Assessment Method for the ICU (CAM-ICU)
The test should be done on a sufficiently awake patient (RASS score, -3 or more)
The criteria
An acute change from mental status at base line or fluctuating mental status during the past 24 hr(must be true to be positive)
More than 2 errors on a 10point test of atten tion to voice or pictures (must be true to be positive)
If the RASS is not 0 and the above two criteria are positive, the patient is delirious
If the RASS is 0 and the above two criteria are positive, test for disorganized thinking using 4 yes/no questions and a 2step command; >1 error means the patient is delirious; ≤1 error excludes delirium