Diazepam & Nordiazepam DIAZ

Method(s) Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Specimen Required
Collect

One 6 mL gray (potassium oxalate/sodium fluoride) top tube. Also acceptable: plain red, lavender (EDTA), pink (K2EDTA) or green (sodium heparin) top tubes.

Transport

2 mL serum or plasma at 2-8°C (Min: 1 mL). Separate serum/plasma from cells within 2 hours of collection.

Stability

After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years (Avoid repeated freeze/thaw cycles)

Unacceptable Conditions

Gel separator tubes, whole blood or plasma collected in light blue (sodium citrate) tubes.

Schedule Tue, Fri
Billing Code 5011522
CPTCode 80346
Preferred Specimen Collection Device(s)
Reference Interval
 
ComponentDose-Related Range
Diazepam200-1000 ng/mL - Based on normal dosage amounts
Nordiazepam100-1500 ng/mL - Based on normal dosage amounts.
Toxic: Greater than 2500 ng/mL
No Appointment Necessary
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11 Patient Service Centers in Central New York.

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