Biomarkers · Chemical
p-tau217
- Primary unit
- pg/mL
- LOINC codes
- 104663-0
- Tests that measure p-tau217
- Labcorp 2, Quest Diagnostics 2
Ranges
Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ
Quest Diagnostics, Lumipulse® p-tau217/Beta-Amyloid 42 Ratio, Plasma 17970
| Population | Interval |
|---|---|
| ptau217 | Not Established |
| ABeta 42 | Not Established |
| ptau217/ABeta 42 Ratio | ≤0.00370 |
| Lower Risk | ≤0.00370 |
| Indeterminate Risk | 0.00371-0.00737 |
| Higher Risk | ≥0.00738 |
Tests
Check the catalog code, specimen, method and preparation for every test that measures p-tau217. Select up to five tests to compare them side by side.
Labcorp 2 tests
Single-analyte tests
Phosphorylated Tau 217 (pTau-217), Plasma 484390
Plasma · Fasting not stated · Turnaround 5 - 7 days
Labcorp catalog pageMethod and collection
- Method
- Fujirebio Lumipulse chemiluminescent enzyme immunoassay (CLEIA)
- Collection
- Draw blood in lavender-top (EDTA) tube. Invert to mix with preservatives. Centrifuge and transfer plasma to a labeled plastic transport tube and freeze.
- Reference notes
- 0.00–0.18 pg/mL
Panels that include this biomarker
Lumipulse® pTau-217/Beta Amyloid 42 Ratio, Plasma 505809
2 analytes · Plasma · Fasting not stated · Turnaround 5 - 7 days
Labcorp catalog pageMethod and collection
- Method
- Fujirebio Lumipulse chemiluminescent enzyme immunoassay (CLEIA)
- Collection
- Draw full lavender-top (EDTA) tube of blood. Immediately separate plasma from blood via centrifugation (2,000 g for 10 minutes) within two hours after blood collection. Transfer plasma to Labcorp polypropylene transport tube, seal and freeze .
Quest Diagnostics 2 tests
Single-analyte tests
Quest AD-Detect® Phosphorylated tau217(p-tau217), Plasma 13825
Plasma · Fasting not stated · Turnaround Set up: Mon-Sat
Quest Diagnostics catalog pageMethod and collection
- Method
- Immunoassay (IA)
- Preparation
- Patients should be cautioned to stop biotin consumption at least 72 hours prior to collection of a sample
- Collection
- Follow standard protocol for specimen collection and centrifugation then transfer plasma to a labeled plastic transport tube.
- Reference notes
- ≤0.15 pg/mL
Panels that include this biomarker
Lumipulse® p-tau217/Beta-Amyloid 42 Ratio, Plasma 17970
3 analytes · Plasma · Fasting not stated · Turnaround Set up: Mon-Sat
Quest Diagnostics catalog pageMethod and collection
- Method
- Fujirebio Lumipulse Chemiluminescent Enzyme Immunoassay
- Collection
- Centrifuge sample within 2 hours of collection and transfer to a polypropylene tube for transport. Freeze within 24 hours. Transport frozen.
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Pick one moreSources
2 tests: codes, specimens, methods, preparation and reference intervals.
Quest Diagnostics test catalog
2 tests: codes, specimens, methods, preparation and reference intervals.
LOINC 104663-0
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for p-tau217
Registered studies that measure p-tau217, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.
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