| Test Name |
Opiates (Low Dose) - Free (Unconjugated) Screen, Serum/Plasma |
| Test Includes |
Buprenorphine - Free [LC-MS/MS], Butorphanol - Free [LC-MS/MS], Hydromorphone - Free [LC-MS/MS], Morphine - Free [LC-MS/MS], Nalbuphine - Free [LC-MS/MS], Naloxone - Free [LC-MS/MS], Naltrexone - Free [LC-MS/MS], Norbuprenorphine - Free [LC-MS/MS] |
| Compound Synonym(s) |
Buprenex®
Buprenorphine Metabolite
Depade®
Dilaudid®
Hydrocodone Metabolite
Nalorex®
Narcan®
Nubain®
ReVia®
Stadol®
Trexan®
Vivitrol® |
| Method(s) |
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) |
| 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): 30 day(s) |
| Rejection Criteria |
Polymer gel separation tube (SST or PST). |
| Day(s) Test Set-up |
[LC-MS/MS] Monday Wednesday Friday 3 days |
Reflex Testing
(when required, addl' fee may apply) |
5590SP - Opiates (Low Dose) - Free (Unconjugated) Confirmation, Serum/Plasma |