Find Locations
For hours, walk-ins and appointments.Expected 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.
Specimen Requirements
Specimen
Meconium
Volume
5 grams
Minimum Volume
1 gram
Container
Meconium Collection Kit (PeopleSoft No. 96663) or clean, leakproof polypropylene container
Collection
Specimens from different voidings may be pooled if necessary. For step-by-step instructions for collecting and preparing meconium specimens, see Meconium Testing Collection Instructions.
Storage Instructions
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen.
Test Details
Use
Detect fetal exposure to fentanyl
Methodology
Initial presumptive testing by immunoassay at a testing threshold of 2 ng/gm. Presumptive positives confirmed by definitive liquid chromatography/tandem mass spectrometry (LC/MS-MS).
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 817070 | Fentanyl Scr/Conf, Meconium | 61042-8 | 817068 | Fentanyl | 61042-8 |
| Reflex Table for Fentanyl | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 701954 | Meconium Fentanyl Confirmation | 701949 | Fentanyl | ng/gm | 61042-8 |
| Reflex Table for Fentanyl | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 701954 | Meconium Fentanyl Confirmation | 701951 | Norfentanyl | ng/gm | 61053-5 |
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