Update Type: Test Down or Delayed
Test Updated: 12/20/2023
Test Overview
Test Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Test Usage
Monitor therapeutic drug levels.
Reference Range *
Diazepam and Nordiazepam: 200 - 2,500 ng/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Thursday
Analytic Time
2 - 10 days
Soft Order Code
DIA
MiChart Code
Diazepam Level
Synonyms
- Clorazate
- Clorazepate Dipotassium
- Tranxene
- Valium
- DIAZEPAM/NORDIAZEPAM, SERUM
- DIA+NORDIA
- DIAZEPAM
- NORDIA
- DIAZEPAM + NORDIAZEPAM
- NORDIAZEPAM
Laboratory
Sendout
Reference Laboratory
Mayo DIA (8629)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a red top tube; do not use SST tube. Centrifuge and aliquot serum into plastic vial. Refrigerate (preferred), freeze or store at room temperature.
Normal Volume
0.5 mL serum
Minimum Volume
0.3 mL serum
Rejection Criteria
SST tube not acceptable.
Additional Information
Test sent to Mayo Clinic Laboratories.
Billing
CPT Code
80346
Fee Code
20010
LOINC
Z10-9