Phenobarbital, Free


Abbrev Code:FPHENO   
Order Code:LAB3482Order Name:Phenobarbital Free
Synonyms:Luminal, PB; Phenobarbital, Unbound
Methodology:Ultrafiltration/Immunoassay
CPT Codes: 80184 x1
Turnaround Time:Specimens are sent to the reference laboratory Mon-Fri; results are reported within 1 day.


Collection Instructions

Specimen:Blood
Optimal Volume:6 mL
Minimum\Peds Volume:2.2 mL
Container:Red (no gel)
Alternate Containers: 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, 1 mL minimum. Store at room temperature.
Shipping Instructions:Ship at room temperature.
Stability:Up to 3 days at room temperature; for longer storage, refrigerate or freeze.
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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