Tau/Aß42
Also known as: Alzheimer biomarkers
Formal name: Tau protein and Amyloid Beta 42 peptide
Related tests: Phosporylated Tau (P-tau), Apolipoprotein E genotyping (ApoE), Presenilin 1 (PSEN1)
At a Glance
Why Get Tested?
To help discriminate between Alzheimer's Disease and other forms of early-onset dementia
When to Get Tested?
These tests may be ordered along with cognitive and brain-imaging tests in patients who demonstrate some form of dementia. These tests are not routine laboratory tests and are available only in research settings or memory clinics.
Sample Required?
A sample of cerebrospinal fluid collected using a spinal tap
Test Preparation Needed?
Your doctor will advise you of any preparatory requirements.
