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ID:52 Carbamazepine
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DescriptionFor drug monitoring purposes, blood should not be drawn until a steady state has been attained. This will not be achieved until 2-4 weeks after starting therapy. Following the establishment of a steady state, further samples casn be taken after 3-4 days.
IndicationTherapeutic Drug Monitoring (anti convulsant).
Additional InfoThe concentration of carbamazepine may be increased in liver disease as it is completely metabolised by the liver. Carbamazepine may also induce the hepatic metabolism of other drugs by enzyme induction. PLEASE NOTE: TEST CAN ONLY BE ADDED TO A SAMPLE WITHIN 8 HOURS OF COLLECTION
Concurrent Testsna
Dietary Requirementsna
InterpretationSerum/plasma levels only moderately correlate to dose.

DepartmentBlood Sciences
SampleBlood
TubeSerum or Heparin
Tube Picture
Collection ConditionsUse Gold top (serum gel) tube except for Intensive care units, renal unit, transplant unit, patients on IV heparin (use Green/yellow top tube for these patients).
Min. Vol1 mL
Freq.Weekdays

Ref. Range (Male)4 - 12 mg/L (Note Units)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range NotesNOTE: Reporting units changed from mmol/L to mg/L May 1, 2007.
Unitsmg/L
IP Acute TATRefer to Website
IP Routine TATRefer to Website
GP Acute TAT- Contact Laboratory
GP Routine TATRefer to Website
Turnround CommentNA

Originally edited by : MC. Review due on 24/05/2017 08:04:58. Published By Sylvia Mclellan on 24/05/2016 08:04:58.