Phenobarbital, Free


Sunquest Code:FPHENO  
Epic Code:LAB3482Epic Name:PHENOBARBITAL FREE
Synonyms:Luminal, PB; Phenobarbital, Unbound
Methodology:Ultrafiltration/Immunoassay
CPT Code:80184
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1 day.


Collection Instructions

Specimen:Blood
Optimal Volume:6 mL
Minimum\Peds Volume:4.2 mL
Container:Red (no gel) (Green (lithium heparin, no gel), Green (sodium heparin, no gel))
Collection Instructions:Trough levels are the most reproducible.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 3 mL, 2 mL minimum. Store at room temperature.
Shipping Instructions:Ship at room temperature.
Test Performed at or Referral Lab Lab Sendouts  (MedTox)
Referral Lab number:94


Interpretive

Critical Range:Greater than or equal to 25.0 ug/mL
Reference Range:6.0-20.0 ug/mL


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