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HelpTest Code TEG CARBAMAZEPINE LEVEL
Additional Codes
| Software | Test Code |
|---|---|
| Label Text | TEG |
| EPIC | LAB21 |
Performing Laboratory
NorDx Laboratories
Useful For
Monitoring the dosage of Carbamazapine (Tegretol®)
Method Name
Immunoassay (IA)
Reference Values
Therapeutic concentration: 4.0-12.0 ug/mL
Toxic concentration: >15.0 ug/mL
Carbamazepine levels should be drawn as a trough (2 hours prior to the next scheduled dose). Oral absorption is slow, peak levels occur 8 to 65 hours after ingestion of the first dose; the half-life ranges from 8 to 60 hours, therefore, steady-state is achieved in 2 to 5 days. Serum levels are particularly important during the first few weeks of therapy when autoinduction is occurring.
Days and Times Test Performed
Monday through Sunday
Report Available
1 Day
Available Stat
Specimen Type
Submit one of the following:
~ Plasma
~ Serum
Preferred Container
Plasma Seperator Tube (PST)
Serum Separator Tube (SST)
Preferred Volume
Plasma: 0.5 mL (Plasma Seperator Tube (PST))
Serum: 0.5 mL (Serum Separator Tube (SST))
Minimum Volume
Plasma: 0.3 mL (Plasma Separator Tube (PST))
Serum: 0.3 mL (Serum Separator Tube (SST))
Specimen Collection and Handling
Spin specimen, separate from clot and send refrigerated.
Specimen Stability Information
Specimen Type: Serum
Frozen: 3 Months
Refrigerated: 6 Days
Must be spun/separated within: 2 Hours
Note: Freeze at -20 C for long term storage
Add On Capable
Yes
Advance Beneficiary Notice Requirements
No ABN Required
CPT Code Information
|
CPT Code |
CPT Description |
CPT Disclaimer |
|---|---|---|
| 80156 | Drug Assay Carbamazepine, Total |
Keywords
TEGRETOL® (CARBAMAZEPINE)
TDM
THERAPEUTIC DRUG MONITORING
Performing Laboratory Location
NorDx Laboratories
Clinical Significance
Controlling partial seizures with both temporal lobe and psychomotor symptoms, for generalized tonic-clonic seizures, and for analgesia of trigeminal neuralgia.
LOINC Code Information
3432-2
Acceptable Alternative Container(s)
Red Top Tube