Barbiturates, GC/MS, Urine

Overview

  • EPIC Code:
  • LAB2839
  • Soft Test Code:
  • BARCC
  • Send Out Test Code:
  • 8416
Included Tests

Amobarbital; Butabarbital; Butalbital; Pentobarbital; Phenobarbital; Secobarbital


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.


Specimen Collection & Preparation

Specimen Requirements

10.0 mL Urine Non Sterile Yellow Capped Plastic Containers (No preservatives)

Alternate Specimen

20.0 mL Urine Sterile Gray Capped Plastic Containers (No preservatives)

TransportAndStorage

7 days Ambient
7 days Refrigerated

Collection Instructions

 

Clinical Interpretation

Reference Range:

Refer to Interpretive Results


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.


Production Schedule

Sites Performed
  • Quest - Chantilly
Days Performed
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Sendouts - Clinical
Turn Around Time

3 to 4 days


Coding & Compliance

CPT Coding

80345 (Medicare G6043)