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Test Code PCPMC Phencyclidine (PCP) Confirmation, Meconium

Reporting Name

PCP Confirmation, Meconium

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Detection of in utero to phencyclidine (PCP) exposure up to 5 months before birth

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)


Ordering 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 specimen.


Specimen Type

Meconium

Specimen Minimum Volume

0.3 g (approximately 1/4 teaspoon)

Specimen Stability Information

Specimen Type Temperature Time Special Container
Meconium Frozen (preferred) 28 days
  Ambient  28 days
  Refrigerated  28 days

Reject Due To

Grossly bloody Reject
Pink-colored specimen OK
Stool
Diapers		 Reject

Reference Values

Negative

Positives are reported with a quantitative liquid chromatography tandem mass spectrometry result.

Cutoff concentration: 5 ng/g

Interpretation

The presence of phencyclidine (PCP) in meconium is indicative of in utero drug exposure up to 5 months before birth.

Day(s) Performed

Monday through Sunday

Report Available

2 to 3 days

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

83992

G0480 (if appropriate)

 

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

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.