Carbamazepine, free & total-1959

Test info

  
Carbamazepine, free & total
  
1959
  
LAB1959
  
CZB
  
Carbatrol®
CBZ
Epitol®
Epoxide
Tegretol®
  
  • Carbamazepine
  • Carbamazepine, unbound
  

Therapeutic drug management

Specimen

  
Serum
  
  
3.0 mL
  
1.2 mL
  

Trough levels are most reproducible

  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Serum/plasma transfer vial/tube (MedTox), labelled as serum, within two (2) hours of sample collection
  
  
Heparin plasma
  

Dk green heparin (Li or Na), no gel

 

  

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting

  
  1. Spin
  2. Transfer plasma to a Serum/plasma transfer vial/tube (MedTox), labeled as the appropriate plasma type, within two (2) hours of sample collection
  

Refrigerated (preferred)

Ambient - 3 days

Frozen (OK)

  

Gel barrier tubes

Performance

  
MedTox Laboratories (954): R-MX
  
Daily
  
1 - 2 days
  

Ultrafiltration; Immunoassay (IA)

Clinical and Interpretive info

  

Carbamazepine, total: 4.0 - 12.0 µg/mL

Carbamazepine, free:  0.6 - 4.2 µg/mL

Billing

  
80156
80157

Tracking

  
11/30/2001
  
07/12/2023
  
07/12/2023