Adulteration is the tampering of a urine specimen with the intention of altering drug test results. The use of adulterants can cause false negative results in drug tests by either interfering with the screening test and/or destroying the drug metabolites present in urine. Urine adulteration can be performed in many ways:

  • Drinking excessive amounts of water before a urine drug test
  • Taking creatine supplements to trigger false positives via creatinine metabolite
  • Submitting “synthetic urine” from a foreign donor
  • Dilution using sink or toilet bowl water

There are no true ways to pass a drug test apart from practicing sobriety. A modern-day urine drug screen provides drug test adulteration detection by measuring urinary properties:

  • Creatinine
  • pH
  • Specific Gravity
  • Glutaraldehyde
  • Nitrites
  • Oxidants/Pyridinium Chlorochromate (PCC)