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Test Code DIAZPM Diazepam and Nordiazepam, Serum

Additional Codes

MAYO Test ID

DIA

EPIC Test ID

LAB468

 

Reporting Name

Diazepam and Nordiazepam, S

Useful For

Assessing compliance

 

Monitoring for appropriate therapeutic level

 

Assessing toxicity

Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum Red


Specimen Required


Container/Tube: Red top

Specimen Volume: 0.5 mL


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reject Due To

Hemolysis

Mild OK; Gross OK

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross OK

Other

Serum gel tube

Reference Values

Therapeutic concentrations

Diazepam and Nordiazepam: 200-2,500 ng/mL

Day(s) and Time(s) Performed

Tuesday

CPT Code Information

80346

G0480 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DIA Diazepam and Nordiazepam, S 49044-1

 

Result ID Test Result Name Result LOINC Value
8629 Diazepam 3548-5
2475 Nordiazepam 3537-8
2459 Diazepam and Nordiazepam 16757-7

Analytic Time

Same day/1 day

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

Forms

If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/neurology-request-form.pdf)