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Mexiletine, Serum or Plasma

Specimen:

Collect

  • One Red Top

Also Acceptable:
  • One Lavender (EDTA)
  • One Pink Top (EDTA)

Submit

  • 1 mL (Min:0.5 mL) Serum in Standard Transport Tube. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable:
  • 1 mL (Min:0.5 mL) Plasma in Standard Transport Tube. Submit Refrigerated. Submit in a Standard Transport Tube.
  • 1 mL (Min:0.5 mL) Plasma in Standard Transport Tube. Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling

  • Separate serum from cells ASAP or within 2 hours of collection
  • Serum Pre-dose (Trough) Draw - At a steady state concentration or plasma pre-dose (Trough) Draw - At a steady state concentration.

Rejection Criteria

  • Light blue (Citrate)
  • Use of separator tubes
  • Whole blood

Stability

Ambient: 2 Day(s); Refrigerated: 5 Day(s); Frozen: 2 Month(s); Incubated: Unacceptable

Methodology

  • Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Monday, Thursday, Saturday

Reported

2-9 Day(s)

CPT Codes

  • 80299

Components

  • 90090 - MEXILETINE, SERUM OR PLASMA
Last Updated: November 20, 2024 @ 10:13 am

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It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date.
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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT