Quest AD-Detect® Apolipoprotein E (ApoE) Isoform, Plasma
Test code
CPT code(s)*
Clinical significance
Test resources
Test FAQ
Details
Methodology
Liquid Chromatography/Mass Spectrometry (LC/MS)
Assay category
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Alternative name(s)
Amyloid imaging abnormalities,Alzheimer's Disease (AD),ApoE2,ApoE3,ApoE4,ARIA,Amyloid immunotherapy,Anti-amyloid immunotherapy
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 1 mL plasma collected in a K2 EDTA (lavender-top) tube |
| Minimum volume | 0.5 mL |
| Collection instructions | Collect blood into a K2 EDTA Plasma tube and mix by inversion 10 times. Centrifuge specimen to separate plasma from cells within 1 hour of collection. Carefully transfer plasma into a polypropylene tube or one of the Quest issued polypropylene pour-off/ transfer tubes. Do not transfer to conical tube. If unable to centrifuge within 1 hour of collection, store tube on ice. Store frozen. Note: Quest Diagnostics does not perform this test for individuals under the age of 18. Pre-test and post-test counseling is strongly recommended. |
| Transport container | Select a service area to view this section. |
| Transport temperature | Refrigerated (cold packs) |
| Specimen stability | Room temperature: 72 hours Refrigerated: 14 days Frozen: 32 days |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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