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Test Code Epic LAB687 Flecainide, Serum

Additional Codes

SQ code FLECAM

Mayo code FLEC

Reporting Name

Flecainide, S

Specimen Type

Serum Red

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Optimizing flecainide dosage

 

Assessing flecainide toxicity

 

Monitoring compliance


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube: Red top (serum gel/SST are not acceptable)

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions:

1. Draw blood immediately before next scheduled dose.

2. Centrifuge and aliquot serum into a plastic vial within 2 hours of collection.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reference Values

Trough Value

0.2-1.0 mcg/mL: Therapeutic concentration

>1.0 mcg/mL: Toxic concentration

Day(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

80181

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FLEC Flecainide, S 3638-4

 

Result ID Test Result Name Result LOINC Value
9243 Flecainide, S 3638-4

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Method Name

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

Method Description

Protein is precipitated from serum and following centrifugation the supernatant is diluted and analyzed by liquid chromatography tandem mass spectrometry.(Unpublished Mayo method)

Report Available

2 to 5 days

Secondary ID

9243

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.