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Test Code PHNC Phencyclidine Confirmation, Random, Urine

Additional Codes

Mayo Test ID
PCPU

Reporting Name

Phencyclidine Confirmation, U

Useful For

Detection of drug abuse involving phencyclidine (street names: angel dust, hog, or angel hair)

Method Name

Gas Chromatography Mass Spectrometry (GC-MS) Confirmation with Quantitation

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Ordering Guidance


1. For situations where chain of custody is required, a Chain of Custody Kit (T282) is available. For chain-of-custody testing, order PCPX / Phencyclidine Confirmation, Chain of Custody, Random, Urine

2. If urine creatinine is required or adulteration of the sample is suspected, order ADULT / Adulterants Survey, Random, Urine.

3. Additional drug panels and specific requests are available. Call 800-533-1710 or 507-266-5700.



Specimen Required


Supplies: Urine Tubes, 10 mL (T068)

Container Tube: Plastic, 10 mL urine tube

Specimen Volume: 10 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.

Additional Information:

1. No specimen substitutions.

2. STAT requests are not accepted for this test.


Specimen Minimum Volume

1.2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  14 days
  Ambient  72 hours

Reject Due To

Gross hemolysis OK
Gross icterus OK

Reference Values

Negative

Cutoff concentrations

Phencyclidine by GC-MS: <10 ng/mL

Day(s) Performed

Monday, Wednesday

CPT Code Information

83992

G0480 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PCPU Phencyclidine Confirmation, U 16254-5

 

Result ID Test Result Name Result LOINC Value
6673 Phencyclidine-by GC/MS 16254-5
21192 Phencyclidine Interpretation 69050-3
21193 Chain of Custody 77202-0

Clinical Information

Phencyclidine (PCP) is a drug of abuse. This compound affects diverse neural pathways and interacts with cholinergic, adrenergic, gamma-aminobutyric acid (GABA)-secreting, serotoninergic, opiate neuronal receptors, and gamma receptors. It has analgesic, anesthetic, and stimulatory effects, yielding bizarre behavior, ranging from depression through catatonia, euphoria, violent rage, and hallucinations. Most fatalities result from its hypertensive effect.

 

Diagnosis of PCP usage depends on drug screening. PCP is excreted in the urine.

Interpretation

The presence of phencyclidine (PCP) in urine is a strong indicator that the patient has used PCP.

Cautions

Urine phencyclidine (PCP) may be undetectable at alkaline pH. Urine pH must, therefore, always be recorded.

Method Description

The specimen is analyzed by gas chromatography mass spectrometry.(Unpublished Mayo method)

Report Available

3 to 7 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.