Positive Alzheimer’s Blood Test? Don’t Panic Yet

Can a simple blood test detect Alzheimer’s disease? In this episode of The Dementia Doctor, Dr. Andrea Bozoki, Divison Chief and Cognitive Neurologist from University of North Carolina Chapel Hill joins us and shares her insights about about the rapidly evolving world of Alzheimer’s blood tests and blood-based biomarkers. Together we discuss how these tests are used in memory clinics, how accurate they are, what a positive result really means, and why testing people without cognitive symptoms can create serious ethical and emotional challenges. This conversation covers Alzheimer’s blood biomarkers such as p-tau217, beta-amyloid, amyloid PET scans, CSF testing through lumbar puncture, anti-amyloid therapy requirements, and the difference between having Alzheimer’s disease pathology and having clinical symptoms of dementia. If you or a loved one is considering an Alzheimer’s blood test, this episode will help you understand what these tests can tell us — and what they cannot tell us yet. Chapters: 0:00 Introduction 0:15 Meet Dr. Andrea Bozoki 1:05 How are Alzheimer’s blood-based biomarkers used in Dementia Clinic? 2:01 How accurate are Alzheimer’s blood tests? 3:15 When should clinicians use these tests? 4:35 What does a positive blood test mean? 5:45 When do you need amyloid PET or CSF testing? 6:40 Should people without symptoms get tested? 8:35 What defines Alzheimer’s disease: biomarkers or symptoms? 12:00 What to do if you have a positive test but no symptoms 12:30 Exercise, MIND diet, sleep, and prevention strategies 13:32 Clinical trials and the future of Alzheimer’s prevention 15:15 What is p-tau217? 15:53 Other tau biomarkers and disease progression Medical Disclaimer: This video is for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. It is not a substitute for evaluation by your own physician or healthcare professional. Alzheimer’s blood tests and biomarker results should always be interpreted in the context of a full clinical evaluation by a qualified clinician. If you have concerns about memory loss, dementia, Alzheimer’s disease, or test results, please speak with your doctor or a dementia specialist. #Alzheimers #Dementia #AlzheimersBloodTest #MemoryLoss #BrainHealth #DementiaCare #BloodBiomarkers #PTau217 #Amyloid #TheDementiaDoctor