AD-Detect Test for Alzheimer’s Disease Risk

AD-Detect Test for Alzheimer’s Disease Risk

Exclusively available at Quest. This screening test provides an amyloid ratio, which is a risk factor of Alzheimer’s disease. This ratio is based on two biomarkers that have been reported as helping to detect early signs associated with the risk of developing Alzheimer’s disease. This can potentially help you and your doctor design interventions and a management plan that is most beneficial to you. Read more
Test details

Sample type:
You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.
Test type: In Person
Find Patient Service Centers
+ $13.00 Physician Service Fee
Unfortunately this test is not right for you based on your responses.

What Icon
The AD-Detect Test for Alzheimer’s Disease, a blood test for Alzheimer’s disease, measures A-beta 42 and A-beta 40 biomarkers (a biological marker of a molecule found in the body that may be used in evaluating a disease state) in the blood and provides the A-beta 42/40 ratio. The ratio between these two molecular biomarkers may help to detect risk of Alzheimer’s disease in an individual.
Who Icon
Anyone with a family history of Alzheimer's disease, mild cognitive decline, brain trauma, or other risks. See full risk factors at purchase.
How Icon
Schedule an appointment, then visit a Quest Diagnostics patient service center location.
About the Test

Alzheimer’s disease (AD) is a progressive brain-related disorder that affects memory and understanding and can progress to complete mental and physical impairment. This Alzheimer’s test measures A-beta 42 and A-beta 40 biomarkers and provides the A-beta 42/40 blood levels ratio. This ratio between these two molecular biomarkers may help to detect the risk of Alzheimer’s disease before severe mental decline.

For most people with Alzheimer’s disease — those who have the late-onset variety — symptoms first appear when someone is in their mid-60s or later. When the disease develops before the age of 65, it’s considered early-onset Alzheimer’s, which can begin as early as a person’s 30s, although this is rare.

While there is no cure for AD, there are treatments that can help slow its progression when detected early enough. Additionally, there are ongoing clinical trials where new therapies are continuously being developed and tested. Early detection can help encourage the necessary discussions with your doctor so you can minimize further risk through lifestyle modification and have discussions of treatment should they become available.


How it works


Buy a lab test & schedule an appointment

No doctor visit required for purchase. Book a visit to one of 2000+ Quest locations.


Visit Quest for sample collection


Get fast results online

Access results online as soon as they’re available.


Get physician support

Discuss your results with an independent physician at no extra cost.