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Flecainide Level

Tambocor

Test Codes

Mayo: FLEC, EPIC: LAB6022, Beaker: XFLEC

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.

Physician Office/Draw Specimen Preparation

Centrifuge to separate serum from cells within six hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 2.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Rejection Criteria

Serum Separator (SST) tubes.

Specimens not collected and processed as indicated.

In-Lab Processing

Centrifuge to separate serum from cells within six hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 2.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.5 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 28 days
Refrigerated (2-8°C or 36-46°F): 28 days
Frozen (-20°C/-4°F or below): 28 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions

Laboratory

Sent to Mayo Clinic Laboratories in Rochester, MN.

Performed

Monday – Saturday.
Results available in 3-6 days.

Reference Range

By report.

Test Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS).

Interpretation

By report.

Clinical Utility

Flecainide is a Class I cardiac anti-arrhythmic agent with electrophysiologic properties similar to lidocaine, quinidine, procainamide, and tocainide. This assay is used for the therapeutic monitoring and toxicity assessment of flecainide.

CPT Codes

80299
LOINC:  3638-4

Contacts

Last Updated

7/7/2021