Phenobarbital, unbound

Alphabetical Test listing

Phenobarbital, unbound-994

  
Phenobarbital, unbound
  
994
  
LAB994
  
MSO
  
Luminal
Phenobarbital, free
  

Therapeutic drug management

  
Serum
  
  
3.0 mL
  
1.0 mL
  

Trough levels are most reproducible

  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), 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 Transfer vial/tube with cap - 12mL (LabCorp), labelled as the appropriate plasma type, within two (2) hours of sample collection
  

Ambient - 3 days

For storage beyond three days, specimen should be refrigerated or frozen.

  
  • Gel-barrier tubes
  
MedTox Laboratories (94) via LabCorp (809166): R-NX
  
Daily
  
1 - 3 days
  

Immunoassay (IA); Ultrafiltration

  

6.0 − 20.0 µg/mL

  

>25.0 µg/mL

  
80184
  
Result 3951-1
  
05/20/2019
  
07/12/2023
  
07/12/2023