Normal changes of aging and pathology

1. Differentiate between normal changes of aging and pathology or disease-related changes. 2. Describe the key components in an elderly pain assessment and list challenges you would encounter when attempting to assess pain in an older adult. 3. Describe assessment tools used to measure functional status in the elderly 4. Explain the key elements of a comprehensive geriatric assessment. post requires 4 credible references (APA 7th edition) to be cited to support your response. One must be a peer reviewed article.