Barbiturates, GC/MS, Urine

Last Modified: 12/30/2020 11:22:23 AM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 10.0 mL Urine Non Sterile Yellow Capped Plastic Containers (No preservatives)
Collection Instructions:  
Minimum Volume: 5.0 mL Urine
Transport & Storage: Temperature/Stability: 7 days Ambient
7 days Refrigerated
Reference Range: Refer to Interpretive Results
Critical Ranges:  
Test Comments:  
Methodology: Chromatography/Mass Spectrometry
Clinical Significance: Barbiturates are used as hypnotics, sedatives and anesthetics and are 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 reserpine. Urine should only be used if blood cannot be obtained.
Custom Panel: No


Turn Around Time: 3 to 4 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: BARCC
EPIC Test Code: LAB2839
Send Out Test Code: 8416
Included Tests: Amobarbital; Butabarbital; Butalbital; Pentobarbital; Phenobarbital; Secobarbital
CPT Coding: 80345 (Medicare G6043)

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