02/14/2026
Alzheimer’s Disease & the Roche Elecsys pTau181 Test
Alzheimer’s is the most common cause of dementia, leading to progressive memory loss and cognitive decline.
🧬 Genetics Matter
Risk increases with family history. Early detection is critical for treatment planning and slowing progression.
🔬 New Blood Test: Roche Elecsys pTau181
Developed by Roche, this BLOOD test measures phosphorylated tau (pTau181), a marker associated with Alzheimer’s pathology.
✔ 98% accurate at determining when someone is NEGATIVE for Alzheimer’s
✔ Helps avoid unnecessary invasive testing
If results are positive or indeterminate, further testing (PET scan or lumbar puncture) is recommended.
💡 Why Early Detection Matters
Earlier diagnosis allows access to disease-modifying therapies such as FDA approved Leqembi & Kisunla.
Memory changes shouldn’t be ignored. Early evaluation makes a difference.
This is LabCorp Elecsys pTau 181 test code 452560
Expert neurologists at Mississippi Neurological Institute provide trusted care for brain, nerve, and spine conditions. Visit our top-rated neurology clinic in Jackson MS.