Test Details
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Result Turnaround Time
3 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Therapeutic Drug Management
Specimen Requirements
Specimen
Plasma, frozen
Volume
3 mL
Minimum Volume
0.6 mL
Container
Green-top (Heparin) tube or lavender-top (EDTA) tube
Collection Instructions
Transfer separated plasma to a plastic transport tube. Freeze.
Stability Requirements
• Room Temperature: Not stable
• Refrigerated: Not stable
• Frozen: 14 Days
• Freeze/thaw cycles: Stable x3
Storage Instructions
Freeze immediately, ship frozen on dry ice.
Causes for Rejection
Specimen received not frozen; any sample type other than plasma
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 702096 | METHADONE/EDDP RATIO, Plasma | 96602-8 | 702093 | Methadone (Dolophine) | ng/ml | 3772-1 |
| 702096 | METHADONE/EDDP RATIO, Plasma | 96602-8 | 702094 | EDDP (Methadone Mtb) | ng/mL | 60071-8 |
| 702096 | METHADONE/EDDP RATIO, Plasma | 96602-8 | 702095 | Methadone/EDDP ratio | 58390-6 | |
| Order Code | 702096 | |||||
| Order Code Name | METHADONE/EDDP RATIO, Plasma | |||||
| Order Loinc | 96602-8 | |||||
| Result Code | 702093 | |||||
| Result Code Name | Methadone (Dolophine) | |||||
| UofM | ng/ml | |||||
| Result LOINC | 3772-1 | |||||
| Order Code | 702096 | |||||
| Order Code Name | METHADONE/EDDP RATIO, Plasma | |||||
| Order Loinc | 96602-8 | |||||
| Result Code | 702094 | |||||
| Result Code Name | EDDP (Methadone Mtb) | |||||
| UofM | ng/mL | |||||
| Result LOINC | 60071-8 | |||||
| Order Code | 702096 | |||||
| Order Code Name | METHADONE/EDDP RATIO, Plasma | |||||
| Order Loinc | 96602-8 | |||||
| Result Code | 702095 | |||||
| Result Code Name | Methadone/EDDP ratio | |||||
| UofM | ||||||
| Result LOINC | 58390-6 |