Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

VERAPAMIL LEVEL

General Information

Lab Order Codes:

VER

Synonyms:

IsoptinŽ, Calan, Verapamil

CPT Codes:

80375 – Drugs or substances, definitive, qualitative or quantitative, not otherwise specified; 1-3

Test Includes:

Verapamil reported in ng/mL.

Logistics

Test Indications:

Therapeutic drug monitoring (Calcium Channel Blocker)

Lab Testing Sections:

Chemistry - Sendouts

Referred to:

MedTox Laboratories (Test:99743) forward to National Medical (NMS) (Test: 4770B)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

3 – 5 days

Special Instructions:

Trough levels are most reproducible.

Specimen

Specimen Type:

Blood

Container:

Green top (Li Heparin) or Red top tube, NO SST/PST tubes

Draw Volume:

9 mL (Minimum: 3.6 mL) blood

Processed Volume:

3 mL (Minimum: 1.2 mL) serum/plasma

Note: Submission of the minimum volume results in an elevated reporting range and inability to repeat analysis.

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a screw-capped round bottom plastic vial. Store and ship at refrigerated temperatures. Forward promptly.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens; collected in an SST/PST tube

Interpretive

Reference Range:

Verapamil: 70 - 350 ng/mL

Critical Values:

N/A

Limitations:

N/A

Methodology:

Gas Chromatography (GC)

References:

MedTox Laboratories Web Page www.medtox.com
National Medical Services: www.nms.com

Update:

8/10/15: Norverapamil no longer reported. CPT update, previously listed as 82492.



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