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Test Code TRANZ Clorazepate (Assayed as Nordiazepam)

Clinical Indications

Optimize drug therapy and monitor patient adherence.

Additional Test Codes

Epic Order Name: TRANXENE LEVEL (aka TRANZ)
Sunquest Order Code: TRANZ
Epic Px Code: LAB2523

Specimen Collection Type

Preferred: Gray (Potassium Oxalate/Sodium Fluoride)
Acceptable: Plain Red, Green (Sodium Heparin), Lavender (EDTA)

Minimum Collection Volume

1.0 mL

Reference Range

Dose-Related Range:

100-1500 ng/mL based on common dosage amounts

Toxic:

Greater than 2500 ng/mL

Critical Value

Greater than 2500 ng/mL

Interpretation

Clorazepate is assayed as nordiazepam. Toxic concentrations may cause central nervous system depression.

Rejection Criteria

Gel separator tubes. Plasma or whole blood collected in light blue (sodium citrate). Hemolyzed specimens.

Specimen Availability for Add-on Testing

N/A

Specimen Stability

Refrigerated (preferred): 2 weeks
Ambient: 1 week
Frozen: 3 years

Day(s) Performed

Tue, Fri

Performing Lab- Department

TUKHS-BH-Mail Outs

CPT Code

80346

LOINC Code

3498-3

Test Alias

Clorazepate
Desmethyldiazepam
Gen-Xene
Tranxene-SD
Tranxene T-Tab
Nordiazepam
Novo-Clopate
Tranxene

Additional Information / Notes

This test requires its own specimen. Cannot be shared with other orders.