Direct-to-Consumer Alzheimer’s Blood Test Opens Pandora’s Box

From AlzForum

• Quest Diagnostics is selling an AD blood test directly to consumers.

• No peer-reviewed data are published on the test.

• It has low specificity, potentially generating many false-positive results.

• Experts fear it will do more harm than good.

The first direct-to-consumer Alzheimer’s disease blood test has arrived. Quest Diagnostics, a worldwide diagnostic service headquartered in Secaucus, New Jersey, announced on July 31 that it would market a plasma Aβ42/ Aβ40 Alzheimer’s test to the public.