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HelpTest Code CDP Chlordiazepoxide and Metabolite, Serum
Test Down Notes
This test is temporarily unavailable due to instrumentation issues. As an alternate, order ZW86 (1080SP). For additional details, see test update here.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Serum RedShipping Instructions
Ship specimen in amber vial to protect from light.
Specimen Required
Supplies: Amber Frosted Tube, 5 mL (T915)
Collection Container/Tube: Red top
Submission Container/Tube: Amber vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot serum into amber vial within 2 hours of collection.
Specimen Minimum Volume
0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Refrigerated (preferred) | 14 days | LIGHT PROTECTED |
| Frozen | 14 days | LIGHT PROTECTED | |
| Ambient | 24 hours | LIGHT PROTECTED |
Reference Values
Therapeutic concentration:
Chlordiazepoxide: 400-3,000 ng/mL
Nordiazepam: 100-500 ng/mL
Day(s) Performed
Monday, Wednesday
CPT Code Information
80299
Report Available
2 to 7 daysSpecimen Retention Time
14 daysReject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |