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Geisinger Medical Laboratories Test Catalog
BARBITURATES, CONFIRMATION BY GCMS, SERUM |
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Geisinger Epic Procedure Code: LAB1124
Geisinger Epic ID: 52421
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SPECIMEN COLLECTION |
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Specimen type: |
Serum (preferred) or plasma | |
Preferred collection container: |
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Alternate Collection Container: |
3 mL lavender-top (K2 EDTA) tube
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Specimen required: |
2 mL serum (preferred) or plasma: minimum 1 mL | |
Special notes: |
Do not collect in gel tube. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Refrigerated (cold packs) | |
Specimen stability: |
Room temperature: 72 hours. Refrigerated: 7 days. Frozen: 14 days. | |
Rejection criteria: |
Serum separator tube (SST). | |
TEST DETAILS |
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CPT code(s): |
80345 | |
| 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. | ||
Test includes: |
Amobarbital, Butabarbital, Butalbital, Pentobarbital, Phenobarbital, Secobarbital | |
Methodology: |
Chromatography/Mass Spectrometry |
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Synonyms: |
Quest test code 4082, BarbConf Ser
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Clinical significance: |
Extensively used for hypnotics, sedatives, and anesthetics. Readily absorbed from stomach. Duration of action of Barbiturates in therapeutic doses varies from: 8-16 hours (long acting e.g., Phenobarbital); 4-8 hours (intermediate acting e.g., Amobarbital); 3-6 hours (short acting e.g., Pentobarbital). Barbiturates may enhance other CNS depressants, such as Ethanol, Morphine derivatives, tranquilizers, and Resperine. | |