Quest AD-Detect Phosphorylated Tau 217 (p-tau217), Plasma Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	Coming soon	$320.49
Results in	—	~5 business days
Sample type	—	Blood Plasma
Require fasting	—	No

About the test

Current research indicates that plasma p-tau, including p-tau 217, is concordant with amyloid status defined by either CSF biomarker testing or PET scan analysis, and is able to differentiate between AD and non-AD neurodegenerative diseases and to predict progression to AD. Blood-based biomarkers, such as plasma p-tau, could potentially be used as inclusion criteria or to evaluate target engagement and treatment efficacy, and could further advance the development of disease-modifying treatments in the field of AD and related disorders. This assay is designed specifically for the quantitative measurement of tau phosphorylated at threonine 217 (p-tau 217) in human plasma.

Included biomarkers & Reference ranges

Biomarker	Reference range
Phosphorylated Tau 217 (p-tau217) Measures phosphorylated tau 217 in plasma, a blood marker linked to the brain changes of Alzheimer's disease, used in people with memory symptoms.	—

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Stop biotin consumption at least 72 hours prior to collection of a sample.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

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Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

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