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HelpTest Code LAB000 Meconium Methadone Screen with Reflex Confirmation
Specimen Required
Container/Tube: Sterile collection container
Specimen Volume: 3 g
Collection Instructions: Collect specimen into the same sterile collection container until 3 g of meconium have been collected or until the first milk stool appears. When at least 3 g of meconium has been collected, tightly screw on the cap of the collection vial and send specimen ambient.
Note: Specimens from different voids may be pooled if necessary.
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| FMTHM | Meconium Methadone Confirm | No | No |
Testing Algorithm
If screen is positive, then the Meconium Methadone Confirmation (FMTHM) will be performed at no additional charge.
Method Name
Immunoassay (IA); Chromatography/with Mass Spectrometry
Reporting Name
Meconium Methadone Scr/ConfirmSpecimen Type
MeconiumSpecimen Minimum Volume
1 g
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Meconium | Ambient (preferred) | 14 days | |
| Frozen | 365 days | ||
| Refrigerated | 14 days |
Reject Due To
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Reference Values
Initial presumptive testing by immunoassay at the following testing threshold:
Methadone:Â Â Â Â Â Â 50 ng/gm
Presumptive positive confirmed by definitive chromatography mass spectrometry (GC/MC or LC/MS-MS)
Day(s) Performed
Monday through Sunday
Report Available
1 to 6 daysPerforming Laboratory
Medtox Laboratories, Inc.CPT Code Information
80307
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FFMTH | Meconium Methadone Scr/Confirm | 43595-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z5603 | Methadone | 43595-8 |