What to Know About Dementia Screening and Assessment Tools If you’re a family member, friend or caregiver who suspects a loved one might have dementia, it’s important to know about cognitive screening and assessment tools. Since there is no one biological marker or blood test to pinpoint dementia, cognitive tests help doctors evaluate the state of your loved one’s memory, recall, language recognition and ability to follow instructions. If you plan to bring your loved one to a doctor, a combination of tests may be used to screen your loved one for dementia. And, if you are hesitant to consult a doctor just yet, many of these tests include questions that you can try asking your loved one yourself to help you confirm your suspicions. Read more