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Item Value
Test Update Information Carbamazepine assay changed from the Abbott Axsym method to the Beckman DxC method on 09/20/2012.
Approval req'd? No
Available Stat? Yes
Test code CZP
Performed by Parnassus & Mission Bay Chemistry
In House Availability Test available 24 hours per day 7 days a week
Method Turbidimetric inhibition immunoassay (Beckman DxC800)
Collection Instructions Time to steady state: 2-5 days.

Indicate time of draw on requisition.
Container type Gold top or Light Green top
Amount to Collect 1 mL blood
Sample type Serum or plasma
Preferred volume 0.5 mL serum or plasma
Min. Volume 0.2 mL serum or plasma
Units mg/L
Normal range
Therapeutic 4-12 mg/L

Source: Carbamazepine: Drug information copyright 1978-2012, Lexicomp, Inc. Accessed at UpToDate www.uptodate.com August 2012.
Critical value > 15 mg/L
Synonyms Tegretol
Stability Room temperature 8 hours, refrigerated 2 days, frozen at -20C 1 week
Turn around times STAT 1 hour, Routine 4 hours
Additional information Click here for: A Guide on Drug Level Monitoring
CPT coding 80156
LOINC code 3432-2
Last Updated 5/29/2016 11:35:19 PM
Entry Number 166
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