Carbamazepine, Unbound (Free), Serum or Plasma

CPT: 80157

Synonyms

  • CBZ; Epoxide; Tegretol®; Carbatrol®; Epitol®

Expected Turnaround Time

3 days


Related Documents


Specimen Requirements


Specimen

Serum or plasma


Volume

3 mL


Minimum Volume

1 mL


Container

Red-top (no additive) tube or green-top (heparin) tube


Collection

Transfer separated serum or plasma to a plastic transport tube.


Storage Instructions

Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.


Stability Requirements

TemperaturePeriod
Room temperature14 days
Refrigerated14 days
Frozen14 days
Freeze/thaw cyclesStable x3

Causes for Rejection

Gel-barrier tube


Test Details


Use

This test is used for therapeutic drug management.


Methodology

Ultrafiltration; Immunoassay (IA)


Reference Interval

0.6–4.2 µg/mL


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