Naltrexone and Metabolite - Free (Unconjugated), Serum/Plasma Test (3116SP)
| Analysis Code |
3116SP |
| Test Name |
Naltrexone and Metabolite - Free (Unconjugated), Serum/Plasma |
| Test Includes |
6-Beta-Naltrexol - Free [LC-MS/MS], Naltrexone - Free [LC-MS/MS] |
| Compound Synonym(s) |
Depade®
Nalorex®
Naltrexone Metabolite
ReVia®
Trexan®
Vivitrol® |
| Purpose |
Therapeutic Drug Monitoring |
| Category |
Narcotic Analgesic |
| Method(s) |
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) |
| Specimen Requirements |
2 mL Serum or Plasma |
| Transport Temperature |
Refrigerated |
| Specimen Container |
Plastic container (preservative-free) |
| Special Handling |
Serum: Collect sample in Red top tube
Plasma: Collect sample in Lavender top tube (EDTA) or Pink top tube.
Promptly centrifuge and separate Serum or Plasma into a plastic screw capped vial using approved guidelines. |
| Light Protection Required |
Not Required |
| Stability |
Room Temperature: 7 day(s)
Refrigerated: 10 day(s)
Frozen (-20 °C): 1 month(s) |
| Rejection Criteria |
Polymer gel separation tube (SST or PST). |
| Day(s) Test Set-up |
[LC-MS/MS] Monday Wednesday Friday 3 days |
| Suggested CPT Code |
[LC-MS/MS] 83925 |
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