Carbamazepine

Pathology category

Biochemistry - referred tests

Code

CARB

Referral code

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Test information

Used for monitoring AED drug treatment. Therapeutic levels not Ref range given

Guidelines

Pre-analytical

Blood must be taken at least 6 to 8 hrs post dose.

Reference range

Therapeutic range: 4 – 12 mg/L

Source: Pathology harmony ranges

Tube type

Tube type info

Adults: 5ml Serum SST (gold top)

Paediatrics: 0.5ml lithium/heparin (orange top)

Special requirements

Minimum volume

Adults: 1 ml

Paediatrics: 0.3 ml

Assay frequency

Run daily at local laboratory

TAT Inpatient (urgent)

TAT Inpatient

4 hrs

TAT GP/Outpatient

24 hrs

Referral lab

Local, Clinical Biochemistry