Two scales are in common use, the Confusion Assessment Method for the ICU (CAM-ICU) and the Intensive Care Delirium Screening Checklist (ICDSC).
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Sedation Scales for Patients in the ICU
Of the sedation scales described, the Riker Sedation–Agitation Scale and the Richmond Agitation–Sedation Scale are the most commonly reported, but in head-to-head comparison, neither is demonstrably superior Sedation Scales for Patients in the intensive care unit (ICU).
The APACHE II Severity of Disease Classification System
APACHE II uses a point score based upon initial values of 12 routine physiologic measurements, age, and previous health status to provide a general measure of severity of disease.