Normal range 4-12 µg/mL (17-51 µmol/L SI). Specimen: Serum (trough).
Also known as: Tegretol level.
4-12 µg/mLToxicity threshold: read below
Reference range
Conventionalµg/mL
412
SIµmol/L
1751
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Carbamazepine Level; those can be narrower than the band shown.
Carbamazepine Level reference range, specimen, and conversion details
Convert any Carbamazepine Level result between units on the unit converter.
What is the normal range for Carbamazepine Level?
The standard teaching reference range for Carbamazepine Level is 4-12 µg/mL in conventional units, or 17-51 µmol/L in SI units. This value is measured in serum (trough).
What toxicity threshold is taught for Carbamazepine Level?
For Carbamazepine Level, the commonly taught toxicity threshold is: > 12-15 µg/mL (ataxia, diplopia, drowsiness).
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Monitor the CBC and sodium - carbamazepine can cause agranulocytosis and hyponatremia.
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