Blessed Dementia Scale

Description: The BLS-D is a clinical rating scale with 22 items that measure changes in performance of everyday activities (eight items), self-care habits (three items), and changes in personality, interests, and drives (11 items). Ratings are based on information from relatives or friends and concern behavior over the preceding six months. The content of each rating is indicated, but precise question phrasing is not indicated.

Scoring/Interpretation: – Scores for each item: - Total incapacity in an activity is rated 1 and partial - Variable or intermittent incapacity is awarded a half-point Overall scores range from 0 (normal) to 28 (extreme incapacity); a cognitive subscale omits the personality questions (12–22) and has a range from 0 (normal) to 17 (severely demented)

Time to Administer: 10-15 minutes