Confusion Assessment Method, the short version
1. Acute onset and fluctuating course
Is there evidence of an acute change in mental status from the patient's baseline? Did this behavior fluctuate during the day — that is, come and go or increase and decrease in severity?
Does the patient have difficulty focusing attention, for example, being easily distractible or having difficulty keeping track of what was being said?
3. Disorganized thinking
Is the patient's speech disorganized or incoherent, such as rambling or irrelevant conversation, unclear or illogical flow of ideas, or unpredictable switching from subject to subject?