Ordering Recommendation

Optimize drug therapy and monitor patient adherence.

Mnemonic
FLEC
Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Performed

Mon, Thu, Sat

Reported

1-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.

Collect

Plain red. Also acceptable: Lavender (EDTA), pink (K2EDTA or K3EDTA), green (sodium or lithium heparin), or gray (sodium fluoride/potassium oxalate).

Specimen Preparation

Separate serum or plasma from cells within 6 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Gel separator tubes or gels of any kind; drug loss is immediate and no testing will be performed.

Remarks
Stability

After separation from cells: Ambient: 6 weeks; Refrigerated: 6 weeks; Frozen: 6 weeks

Reference Interval

Therapeutic Range:
0.20-1.00 µg/mL
Toxic: > 1.50 µg/mL

Interpretive Data

Toxic concentrations may cause cardiac abnormalities, hypotension and seizure.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

80181

Components
Component Test Code* Component Chart Name LOINC
0090003 Flecainide 3638-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Almarytm
  • Apocard
  • Ecrinal
  • Flecaine
  • Tambocor
Flecainide