Observational pain tools (OPTs) are widely recommended in health care policies, clinical guidelines, and recommendations for pain assessment and management. However, it is unclear whether and how these tools are used for patients with advanced dementia approaching the end of life.. To read the full article, log in using your MPFT NHS OpenAthens details. SSOTP (legacy account) - You can request a copy of this article by replying to this email. Please ensure you are clear which article you are requesting.