Tamoxifen and Metabolites, Serum/Plasma

Test Code

12761

CPT Codes
80299

Includes

Tamoxifen
N-desmethyltamoxifen
Endoxifen
4-Hydroxy-Tamoxifen

Preferred Specimen

1 mL serum collected in a red-top tube (no gel) or
1 mL plasma collected in an EDTA (lavender-top or pink-top) tube

Minimum Volume

0.4 mL

Instructions

Promptly centrifuge and separate serum or plasma into a plastic screw-cap vial using approved guidelines.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 30 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Serum separator tube (SST) • Polymer gel separation tube • Received room temperature

Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

FDA Status
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.

Setup Schedule

Set up: Varies. Report Available: 7 days

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.