Hospital
$600+
Other Labs
$249
TestWell
$184.99
The ApoE4 variant is the most significant known genetic risk factor for late-onset Alzheimer's disease. Carrying one copy of E4 increases risk 3–4x, while two copies increase risk 8–12x compared to the most common E3/E3 genotype. This test identifies your specific ApoE genotype and its associated Alzheimer's risk. It is important to understand that ApoE4 is a risk factor, not a diagnosis — many E4 carriers never develop Alzheimer's, and many Alzheimer's patients do not carry E4. Results should be discussed with a healthcare provider and may inform lifestyle interventions that reduce risk.
Sample Type
Blood draw
Fasting
Not required
Results In
5–7 business days
Performed By
Labcorp
1 biomarker tested
Your ApoE Alzheimer's Risk results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 5–7 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting or special preparation required.
TestWell Price
$184.99
No insurance needed · HIPAA compliant
Frequently ordered together
Customers who ordered ApoE Alzheimer's Risk also added these for a more complete health picture.
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$20.99
Complete blood count with white blood cell breakdown — the gold standard for overall blood health screening.
$21.99
The definitive vitamin D test — an estimated 42% of American adults are deficient.
$41.99
ApoE Alzheimer's Risk
$184.99