CAM

This morning we discussed a case of delirium.  Although a common diagnosis, it is sometimes challenging to diagnose delirium, especially in patients with underlying dementia or depression. The Confusion Assessment Method (CAM) is a validated tool to help you identify delirium. 

The diagnosis of delirium by CAM requires the presence of features 1 AND 2 plus either 3 OR 4.

1. Acute onset and fluctuating course

2. Inattention

3. Disorganized thinking

4. Altered level of consciousness 

For admitted medical and surgical patients, the CAM has a sensitivity of 94-100% and a specificity of 90-95% for diagnosing delirium.

Here is a detailed explanation of Confusion Assessment Method (CAM).