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Test Compendium

Test Name


Test Code

  • 3037

Test Synonym


Minimum Volume

  • 0.2 mL

Specimen Type

  • Serum

Primary Container

  • Serum Separator Tube, Transfer Tube- Serum, Plain Red Top Tube


  • 1 day

Specimen Requirements

  • 1 SST For the purpose of monitoring blood levels, consistency of sample collection timing after administration of the last drug dose improves the safety and efficacy of the anticonvulsant. The timing of specimen collection can influence the relationship between carbamazepine concentration and the clinical response. Other pharmacokinetic factors such as mode of administration, dosage form, concomitant drug therapy, and biological variations in drug absorption should be taken into consideration.

Specimen Retention

  • Some gel separation tubes may not be suitable for use with therapeutic drug monitoring assays. Sample collection systems from various manufacturers may contain differing materials which could affect the test results in some cases. When processing samples in primary tubes (sample collection systems), follow the instructions of the manufacturer.