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Test Name: Diazepam (Valium), Serum
Test Code: 007989
Other Names: N/A
Test Includes: Diazepam, Serum, Nordiazepam, Serum, Total (Diaz+Nord)
Specimen Requirements: Serum OR plasma, 1 mL
Container: Red-top tube, lavender-top (EDTA) tube OR green-top (heparin) tube. DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant.
Collection Instructions: Transfer separated serum or plasma to a plastic transport tube. Oral: peak; one hour after dose; I.V.: peak: 15 minutes after dose.
Stability: Refrigerate
Rejection Criteria / Special Instructions: N/A
Methodology: High-pressure liquid chromatography (HPLC)