Verapamil and Norverapamil


Sunquest Code:VERAP  
Epic Code:LAB3873Epic Name:Verapamil and Norverapamil
Synonyms:Isoptin; Calan
Methodology:Gas chromatography
CPT Code:80299
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 7 days.


Collection Instructions

Specimen:Blood
Optimal Volume:6 mL
Minimum\Peds Volume:2.6 mL Does not permit repeat analysis.
Container:Red (no gel) (Green (sodium heparin, no gel))
Collection Instructions:Trough levels are the most reproducible.
Causes for Rejection:Collection in a polymer gel tube.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 3 mL, 1.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (National Medical Services via MedTox)
Referral Lab number:99743 / NMS 4770


Interpretive

Reference Range:

70-350 ng/mL

 

Use:Monitor therapeutic levels; evaluate toxicity.


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