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Phenobarbital

Phenobarbital

Alternate Test Name

Luminal

Epic Mnemonic
Sunquest Mnemonic

LAB30

PHEN

Category

Chemistry

Methodology

KIMS Assay

Test Performance Schedule

Sunday - Saturday

Result Availability

Within 24 hours

Specimen Required

Container

Gold top (SST), Red top (serum), or Green top (lithium heparin) tube

Volume

Pref. Vol.: 1.0 mL serum or plasma
Min. Vol.:0.5 mL serum or plasma

Collection Instructions

• Routine venipuncture

• Immediately after collection, gently invert tube 5-10 times

• Clot 30 minutes

• Promptly centrifuge 10 minutes

• If no gel barrier is present immediately transfer serum or plasma to a plastic tube and refrigerate

• Properly centrifuged gel barrier tube does not require transfer of serum or plasma to separate tube

Transportation Instructions

Refrigerated

Stability

• Room Temperature: 5 days
• Refrigerated: 5 days

CPT Codes

80184

Effective/Revised

03/28/2017

Clinical Significance

Phenobarbital is one of the most commonly used drugs for the treatment of grand mal, psychomotor epilepsy, and other forms of focal epilepsy. Monitoring of the serum level of the drug is essential in order to achieve maximal seizure control while maintaining minimal blood levels to avoid negative side effects.

 

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