91574 Mexiletine - Interpath Laboratory, Inc.

91574 Mexiletine

Specimen:

Collect:

One 10 mL Red Top

Also Acceptable
One 4 mL Lavender (EDTA)
One 4 mL Green Top (Li Heparin)
One 4 mL Gray Top
One 6 mL Pink Top (EDTA)
One 4 mL Green Top (Na Heparin)

Submit:

1.5 mL (Min:0.8 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
1.5 mL (Min:0.8 mL) Plasma. Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling:

Avoid Repeated Freeze/Thaw Cycles

Rejection Criteria:

Citrated plasma. Tubes that contain liquid anticoagulant
Use of separator tubes

Stability:

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

Methodology:

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed:

Monday, Wednesday, Friday

Reported:

2-3 Day(s)

CPT Codes:

80299

Interpretive Data:

General Reference Range : 1.0-2.0 ug/mL