DEXTROMETHORPHAN AND METABOLITE RATIO - TOTAL, URINE

Specimen Required
Collect random urine, and send 1.0 mL urine (0.3 mL minimum) refrigerated in a screw-capped plastic vial.

Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Stability
Room temperature: 30 days; Refrigerated: 30 days; Frozen: 30 days

Reference Range
By report

Performed
Tuesday, Thursday

Turnaround Time5-7 days
Test CodeUDEXM
CPT-4 Code (s)
80362 (80299)
LOINC Codes
Dextrorphan - Total   73566-2  
Dextromethorphan-Total   21240-7  
Metabolic Ration   Not available  

Warde
Medical
Laboratory