Carbamazepine

Message

After centrifugation, if not in gel barrier tube, pour off plasma or serum into an aliquot tube.

Test Code

LAB21

Alias/See Also

Tegretol

CPT Codes
80156

Preferred Specimen

Lithium Heparin (PST)

Minimum Volume

1 ml (200 ul minimum) plasma; alternate-serum

Other Acceptable Specimens

Gold (SST)

Instructions

Spin PST or SST and send to lab

Transport Temperature

Refrigerated

Specimen Stability

8 hour room temp, 1 month refrigerated

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Icteric: >30 mg/dL; Hemolysis: >500 mg/dL hemoglobin; Lipemia: >300mg/dL

Methodology
Enhanced Turbidometic Inhibition Immunoassay

Setup Schedule

Mon- Sun

Reference Range

Therapeutic Reference Range: 8.0 –12.0 ug/mL

Clinical Significance

Monitoring serum carbamazepine concentrations, along with careful clinical assessment, is the most effective means
of improving seizure control, reducing the risk of toxicity, and minimizing the need for additional anticonvulsant
medication

Performing Laboratory
Piedmont Athens Regional

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.