Talwin® Nx, Urine Test (4303U)

Talwin® Nx, Urine Test (4303U)

Analysis Code 4303U 
Test Name Talwin® Nx, Urine 
Test Includes Naloxone - Total; Pentazocine - Total 
Purpose Compliance Monitoring; This test is New York State approved. 
Category Narcotic Analgesic 
Method(s) Gas Chromatography (GC)
High Performance Liquid Chromatography/
TandemMass Spectrometry (LC-MS/MS) 
Specimen Requirements 2 mL Urine 
Transport Temperature Frozen 
Specimen Container Plastic container (preservative-free) 
Special Handling None 
Light Protection Required Not Required 
Stability Room Temperature: Undetermined
Refrigerated: Undetermined
Frozen (-20 °C): 12 month(s) 
*Rejection Criteria None 
Day(s) Test Set-up / TAT [GC] Monday-Friday / 3 days
[LC-MS/MS] Tuesday Thursday / 4 days 
Suggested CPT Code 80362x2 
**Minimum Volume 0.95 mL 
Test Summary Sheet Generate  

You are viewing Talwin® Nx, Urine Test (4303U)
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.


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