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.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

80299

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