Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

CARBAMAZEPINE LEVEL

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB1939         Geisinger Epic ID: 14237

SPECIMEN COLLECTION
Specimen type:
Serum or plasma
Preferred collection container:
Specimen required:
2 mL aliquot of serum or plasma; minimum 0.2 mL
Patient preparation:
Trough level - immediately before next dose; peak level - 3 hours after oral capsules, 1 hour after oral syrup.

SPECIMEN PROCESSING
Specimen processing instructions:
Allow serum to clot. Centrifuge to separate serum or plasma. 
Transport temperature:
Refrigerated (preferred) or frozen.
Specimen stability:
Room temperature: 2 days. Refrigerated: 1 week. Frozen: 4 weeks.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
Interpretation guide:
Therapeutic range: 4-12 mcg/mL.
Critical values/courtesy alerts:
> 20 mcg/mL.
Additional information:
Significant interferences with this procedure may occur in patients with antibodies induced during treatment with mouse monoclonal antibodies.
CPT code(s):
80156
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Carbamazepine.
Methodology:
Immunoassay
Synonyms:
Tegretol, CARBAM
Clinical significance:
Carbemazepine is an anticonvulsant which is structurally related to the tricyclic antidepressants and is useful in treating patients with temporal lobe epilepsy. Carbemazepine levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 12/24/2020

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Jared Shepard
Frequency: Daily, Monday - Sunday
Performed stat? Yes

Geisinger Wyoming Valley Medical Center

Performing laboratory: ATL+
Technical Lead: Sarah McGowan    
Frequency: Daily, all shifts    
Performed stat? Yes

Geisinger Community Medical Center

Performing laboratory: Chemistry
Technical Lead: Ann Mack, Deborah Dempsey  
Frequency: Daily, all shifts    
Performed stat? Yes
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