Functional Assessment Scale-NACC UDS Version 3.0 Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized ten-item clinician-report questionnaire, originally developed by Pfeffer et al. 1982, that utilizes a five-point rating scale to assess a patient's instrumental activities of daily living (IADLs) in the past four weeks. Version 3 of the questionnaire was implemented in 2015 as part of the National Alzheimer's Coordinating Center Uniform Data Set initial visit packet.

**Synonyms:** - FAS-NACC UDS V3.0 - FAS-NACC UDS Version 3.0 - FASNA1