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HelpOrder Code PCPC Phencyclidine (PCP) Confirmation, Meconium
Additional Codes
| Mayo Test ID |
|---|
| PCPMC |
Reporting Name
PCP Confirmation, MeconiumUseful For
Detection of in utero drug exposure to phencyclidine up to 5 months before birth
Specimen Type
MeconiumOrdering Guidance
For chain-of-custody testing, order PCPMX / Phencyclidine (PCP) Confirmation, Chain of Custody, Meconium.
Specimen Required
Supplies: Stool container. Small (Random), 4 oz (T288)
Container/Tube: Stool container
Specimen Volume: 1 g (approximately 1 teaspoon)
Collection Instructions: Collect entire random meconium (newborn’s first bowel movements) specimen.
Specimen Minimum Volume
0.3 g (approximately 1/4 teaspoon)
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Meconium | Frozen (preferred) | 28 days |
| Ambient | 28 days | |
| Refrigerated | 28 days |
Reject Due To
| Grossly bloody | Reject; Pink OK |
| Stool | Reject |
| Diapers | Reject |
Reference Values
Negative
Positive results are reported with a quantitative liquid chromatography tandem mass spectrometry result.
Cutoff concentration: 5 ng/g
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Day(s) Performed
Monday through Sunday
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
CPT Code Information
G0480
83992 (if appropriate for select payers)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PCPMC | PCP Confirmation, Meconium | 92816-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 89069 | PCP Confirmation, Meconium | 92816-8 |
| 29905 | Interpretation | 69050-3 |
Method Description
Meconium is mixed with internal standard and extracted with methanol. The methanolic extract is further processed by solid phase extraction. The extract is analyzed by liquid chromatography tandem mass spectroscopy.(Unpublished Mayo method)
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.