Carbamazepine, Free

Test Code
CARB FR(18948)

Quest Code
18948

CPT Codes
80157

Preferred Specimen
2 mL serum collected in a red-top tube (no gel)

Minimum Volume
1.2 mL

Other Acceptable Specimens
Plasma collected in an EDTA (lavender-top) or sodium heparin (green-top) tube

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 10 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tubes (SST®)

Methodology
Chromatography/Mass Spectrometry

Setup Schedule
Mon-Fri

Report Available
3 to 4 Day(s)

Reference Range
See Laboratory Report

Performing Laboratory
Quest Diagnostics Nichols Institute Chantilly
14225 Newbrook Dr
Chantilly, VA 20153



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.