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Test Code TEGR Carbamazepine Level

Specimen Type

Blood

Container

Red top

Preferred Volume

4 mL

Offsite Collection Instructions

Gel separator tubes are not acceptable.

UCMC Collection Instructions

Gel separator tubes are not acceptable.

Availability

24/7

Turnaround Time

3 hours

STAT Availability

Available

Test Usage

Useful for monitoring therapy, determining compliance and assessing toxicity.

Test Methodology

cloned enzyme donor immunoassay (CEDIA)

Additional Information

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.

CPT Code

80156

Test Includes

Total Carbamezepine (Tegretol) level

Reference Range

Therapeutic range: 8 – 12 µg/mL

Critical Results

>20 µg/mL

STAT Turnaround Time

1 hour

Minimum Volume

2 mL

Fee Code

43650

Synonyms

tegretol