Laboratory Test Detail

Last Updated: March 3, 2024 @ 10:13 am

90090

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
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