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Test Code FLEC Flecainide, Serum

Reporting Name

Flecainide, S

Useful For

Optimizing dosage


Assessing toxicity


Monitoring compliance

Specimen Required

Sample must be centrifuged and serum aliquoted off within 2 hours of draw.


Container/Tube: Red top

Specimen Volume: 3 mL

Specimen Type

Serum Red

Specimen Minimum Volume

1.1 mL

Specimen Stability Information

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

Day(s) and Time(s) Performed

Monday, Wednesday, Friday; 9:00 a.m.

Seattle Children's Hospital Note:

TAT: 3 - 10 days

Performing Laboratory

Mayo Medical Laboratories in Rochester

Method Name

High-Performance Liquid Chromatography (HPLC)

Method Description

Flecainide serum concentration is measured by high-performance liquid chromatography. The limit of sensitivity of the procedure is 0.1 mcg/mL.(Scott RE, Johnson P, Moyer TP: Simultaneous analysis of five new class I antiarrhythmic drugs. Clin Chem 1988;34:1251)

Reference Values

0.2-1.0 mcg/mL

Test Classification

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

CPT Code Information


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


Mild OK; Gross OK


Mild OK; Gross reject


Mild OK; Gross OK


Plasma, Serum gel tube