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Test ID PCPMC Phencyclidine (PCP) Confirmation, Meconium

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)

Reporting Name

PCP Confirmation, Meconium

Specimen Type


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 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

Reference Values


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

Cutoff concentration:

5 ng/g

Day(s) Performed

Monday through Sunday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information


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

Test Classification

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

Report Available

2 days

NY State Approved



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