| Preferred specimen: |
2.0 mL serum, red top tube. Do not collect in gel-barrier tube. Remove serum from cells ASAP or within 2 hours of collection and transfer to a plastic transport tube. |
| Minimum specimen: |
1.0 mL serum or plasma |
| Notes: |
Test includes: Diazepam and Nordiazepam. |
| Acceptable specimen: |
2.0 mL plasma, lavender (EDTA), green (sodium heparin), or gray (sodium fluoride/potassium oxalate) top tube. Remove plasma from cells ASAP or within 2 hours of collection and transfer to a plastic transport tube. |
| Unacceptable specimen: |
Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate) tubes.
|
| Transport temp: |
Refrigerated |
| Methodology: |
Quantitative Liquid Chromatography/Tandem Mass Spectrometry |
| Unit Code: |
840950 |
| Ref Range: |
Diazepam: 200-1000 ng/mL - Based on normal dosage amounts.
Nordiazepam: 100-1500 ng/mL - Based on normal dosage amounts.
Toxic: Great than 2500 ng/mL |
| Reported: |
2-6 days |
