Flecainide Blood




Test Mnemonic

FLEC

CPT Codes

  • 80181 - QTY (1)

LOINC ®

3638-4

Aliases

  • Almarytm
  • Apocard
  • Ecrinal
  • Tambocor

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2 mLSerumNo additive (Red) RefrigeratedDo not use serum separator tubes. Pre-dose (trough) draw - At steady state concentration. Remove serum from cells within 6 hours of collection and transfer into standard aliquot tube.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2 mLPlasmaEDTA (Lavender) RefrigeratedDo not use plasma separator tubes. Pre-dose (trough) draw - At steady state concentration. Remove plasma from cells within 6 hours of collection and transfer into standard aliquot tube.
2 mLPlasmaSodium or Lithium heparin (Green) RefrigeratedDo not use plasma separator tubes. Pre-dose (trough) draw - At steady state concentration. Remove plasma from cells within 6 hours of collection and transfer into standard aliquot tube.
2 mLPlasmaPotassium oxalate/sodium fluoride (Gray) RefrigeratedDo not use plasma separator tubes. Pre-dose (trough) draw - At steady state concentration. Remove plasma from cells within 6 hours of collection and transfer into standard aliquot tube.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 6 weeks
RefrigeratedAfter separation from cells: 6 weeks
FrozenAfter separation from cells: 6 weeks

Days Performed

Mon, Thu, Sat

Turnaround Time

2 - 9 days

Methodology

Name Description
Quantitative Liquid Chromatography - Tandem Mass Spectrometry 

Reference Range

Flecainide
Sex Age From Age To Type Range Range Unit
       Therapeutic Range: 0.20 - 1.00 ug/mL 
       Toxic: >1.50 ug/mL 

Special Info

Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration. Gel separator tubes or gels of any kind will be rejected; drug loss is immediate, and no testing will be performed. This test is New York DOH approved.

Clinical Info

Useful to optimize drug therapy and monitor patient adherence. Toxic concentrations may cause cardiac abnormalities, hypotension and seizure.