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Geisinger Medical Laboratories Test Catalog
PHENOBARBITAL LEVEL |
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Geisinger Epic Procedure Code: LAB2841
Geisinger Epic ID: 14246
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SPECIMEN COLLECTION |
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Specimen type: |
Serum or plasma | |
Preferred collection container: |
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Specimen required: |
2 mL aliquot of serum or plasma; minimum 0.2 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (preferred) or frozen. | |
Specimen stability: |
Room temperature or refrigerated: 7 days. Frozen: 1 year. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
Therapeutic Range: 0-12 years - 15-30 mcg/mL. Over 12 years - 15-40 mcg/mL. | |
Critical values/courtesy alerts: |
Above 50.0 mcg/mL | |
Additional information: |
Significant interference with this procedure may occur in patients with antibodies induced during treatment with mouse monoclonal antibodies. | |
CPT code(s): |
80184 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Methodology: |
Immunoassay |
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Synonyms: |
LUMINAL,
PHEN
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Clinical significance: |
Phenobarbital is an anticonvulsant used for the long-term treatment of generalized grand mal seizures and cortical focal seizures. Phenobarbital levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |