Mexiletine, Serum/Plasma [4934X]

Test Code

CPT Codes

Preferred Specimen
2 mL serum collected in a red-top tube (no gel), or plasma collected in an EDTA (lavender-top) tube

Minimum Volume
0.7 mL

Promptly centrifuge and separate serum or plasma into a transport tube.

Note: NMS Labs has no experimental or literature-based data regarding the choice of specific specimen collection containers for this test.

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 5 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Polymer gel separation tube (serum separator tube or plasma separator tube)

Gas Chromatography (GC)

Setup Schedule
Set up: Tues a.m.; Report available: 3 days

Reference Range
See Laboratory Report

Clinical Significance
Therapeutic Drug Monitoring

Performing Laboratory
NMS Labs
200 Welsh Rd
Horsham, PA 19044

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.