Flecainide Drug Level
Label Mnemonic: FLE
Epic Lab Code: LAB3147
Downtime Form: A-1a Therapeutic Drug Assay Requisition
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Patient Preparation: Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 2 mL serum
Absolute Minimum: 0.5 mL serum
Rejection Criteria:
Gel separator tubes or gels of any kind; drug loss is immediate and no testing will be performed.
Delivery Instructions:
Submit specimen to laboratory as soon as possible after collection.
Turn Around Time:
1-5 days upon receipt at reference laboratory.
Reference Range:
Therapeutic Range: 0.2 - 1.0 mcg/mL
Toxic: > 1.5 μg/mL
Interpretive Data:
Toxic concentrations may cause cardiac abnormalities, hypotension and seizure.
Methodology:
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
CPT Code:
82542