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Test Code LAB21 Carbamazepine (Tegretol)

Department

CHEMISTRY

Collection Requirements

Trough: immediately prior to dose

Peak: 2-6 hr post oral dose

Primary Collection Container

Green PST (Lithium Heparin)

Alternate Collection Container

Green Microtainer PST

Transport

Refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge and refrigerate.

Separate from gel if testing is to be delayed more than 8 hours.

Stability

Refrigerated: 7 days if removed from gel. 8 hours on Gel. Frozen: 4 weeks

Minimum Testing Volume

0.5 mL

Reference Range

4-12 µg/mL

Methodology

Roche c503 homogenous microparticle agglutination immunoassay

Performed

Sunday – Saturday

Reported

As completed

CPT Codes

80156

Unacceptable Conditions

Specimen on gel longer than 8 hours is unacceptable.