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22632 Flecainide (FLEC)

Flecainide (FLEC)
Test Code: FLECSO
Synonyms/Keywords
​
Tambocor (Flecainide)
Useful For
​Optimizing dosage
 
Assessing toxicity
 
Monitoring compliance
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum Red Top Tube (RTT)​ ​ 1.5 mL​ 0.5 mL​ ​
Collection Processing Instructions

​Draw blood immediately before next scheduled dose.  Centrifuge within 2 hours of draw and aliquot to remove serum from spun RBCs. 

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerated (preferred)​ 28 days​
​ Frozen ​ 28 days​
​ Room Temperature ​ 28 days​
Rejection Criteria
Plasma, serum gel tube, whole blood​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories​
 Monday, Wednesday, Friday​
Same day/1 day​
Liquid Chromatography Mass Spectrometry (LC-MS/MS)​
Reference Lab
Mayo Clinic Laboratories
Reference Range Information
​0.2-1.0 mcg/mL
Interpretation
​Flecainide is most effective in premature ventricular contractions suppression at plasma concentrations in the range of 0.2 to 1.0 mcg/mL.
 
Plasma concentrations >1.0 mcg/mL are associated with a high rate of cardiac adverse experiences such as conduction defects or bradycardia.
 
Therapeutic concentration (Trough Value): 0.2 to 1.0 mcg/mL
 
Toxic concentration (Trough Value):  >1.0 mcg/mL
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80299 ​ ​ ​ ​
Synonyms/Keywords
​
Tambocor (Flecainide)
Ordering Applications
Ordering Application Description
​Centricity ​Flecainide, Serum
​Cerner ​Flecainide Level (9243)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Serum Red Top Tube (RTT)​ ​ 1.5 mL​ 0.5 mL​ ​
Collection Processing

​Draw blood immediately before next scheduled dose.  Centrifuge within 2 hours of draw and aliquot to remove serum from spun RBCs. 

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerated (preferred)​ 28 days​
​ Frozen ​ 28 days​
​ Room Temperature ​ 28 days​
Rejection Criteria
Plasma, serum gel tube, whole blood​
Useful For
​Optimizing dosage
 
Assessing toxicity
 
Monitoring compliance
Reference Range Information
​0.2-1.0 mcg/mL
Interpretation
​Flecainide is most effective in premature ventricular contractions suppression at plasma concentrations in the range of 0.2 to 1.0 mcg/mL.
 
Plasma concentrations >1.0 mcg/mL are associated with a high rate of cardiac adverse experiences such as conduction defects or bradycardia.
 
Therapeutic concentration (Trough Value): 0.2 to 1.0 mcg/mL
 
Toxic concentration (Trough Value):  >1.0 mcg/mL
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories​
 Monday, Wednesday, Friday​
Same day/1 day​
Liquid Chromatography Mass Spectrometry (LC-MS/MS)​
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80299 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.