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Test ID ADLTX Adulterants Survey, Chain of Custody, Random, Urine

Useful For

Assess the possible adulteration of a urine specimen submitted for drug of abuse testing

 

Providing the urine creatinine concentration for normalization purposes

 

Chain of custody is required whenever the results of testing could be used in a court of law. Its purpose is to protect the rights of the individual contributing the specimen by demonstrating that it was always under the control of personnel involved with testing the specimen; this control implies that the opportunity for specimen tampering would be limited.

Special Instructions

Method Name

Spectrophotometry

Reporting Name

Adulterants Survey, CoC, U

Specimen Type

Urine


Specimen Required


Supplies: Chain of Custody Kit (T282)

Container/Tube: Chain-of-custody kit containing the specimen containers, seals, and documentation required.

Specimen Volume: 1.5 mL

Collection Instructions: Collect a random specimen without preservative in the provided container, seal, and submit with the associated documentation to satisfy the legal requirements for chain-of-custody testing.

Additional Information: Submitting less than 1.5 mL will compromise the ability to perform all necessary testing.


Specimen Minimum Volume

1 mL

Specimen Stability Information

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

Reference Values

Cutoff concentrations

Oxidants: 200 mg/L

Nitrites: 500 mg/L

Day(s) Performed

Monday through Saturday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ADLTX Adulterants Survey, CoC, U 58715-4

 

Result ID Test Result Name Result LOINC Value
36121 Creatinine, U 2161-8
36122 Specific Gravity 5810-7
36123 pH 2756-5
36124 Oxidants 58714-7
36125 Nitrites 32710-6
36126 Comment 48767-8

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Additional Tests

Test ID Reporting Name Available Separately Always Performed
COCH Chain of Custody Processing No Yes

Report Available

2 to 3 days

NY State Approved

Yes

Testing Algorithm

For more information see Adulterant Survey Algorithm.

Forms

1. Chain of Custody Request is included in the Chain-of-Custody Kit (T282).

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