Test Catalog

Test ID: ADULT    
Adulterants Survey, Random, Urine

Useful For Suggests clinical disorders or settings where the test may be helpful

Assess the possible adulteration of a urine specimen submitted for drug of abuse testing, as well as for providing the urine creatinine for "creatinine normalization"

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

See Adulterant Survey Algorithm in Special Instructions.

Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

Specimen adulteration is the manipulation of a sample that may cause falsely negative test results for the presence of drugs of abuse. Common adulterants that may affect testing are water, soap, bleach, vinegar, oxidants, and salt. The adulteration testing includes assessment of creatinine concentration, pH, urine specific gravity, presence or absence of an oxidant, and presence or absence of nitrite.

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Cutoff concentrations

Oxidants: 200 mg/L

Nitrites: 500 mg/L

Interpretation Provides information to assist in interpretation of the test results

See Adulterant Survey Algorithm in Special Instructions.

Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

No significant cautionary statements

Special Instructions Library of PDFs including pertinent information and forms related to the test