Specimen Validity
ValidTOX, or VDx, is a proprietary assay that detects synthetic urine. We offer the VDx True Urine LD test, which is intended to detect invalid counterfeit and freeze-dried urine specimens submitted for DOA testing. Counterfeit urine, commonly known as synthetic or fake urine, is widely sold illegally for use by drug users to subvert drug tests. The VDx True Urine LD test has a secondary use as an indicator of invalidity due to adulteration.
How It Works
Historically, synthetic urine has not been effectively detected. VDx has identified markers present in urine which are measured to determine if the specimen originated from the urinary tract. The LD marker, called Urinary Tract Protein IV (UTP-IV), is a glycoprotein entering the urine from various parts of the urinary tract. These proteins are stable in urine for at least a weak at ambient temperature or for one month refrigerated at 2-8 degrees Celsius. Simply put, the test measures if the urine sample has these markers and where it falls along cutoff limits in order to report pass or fail on specimen validity.
Use
The VDx True Urine LD test is great for centers working with rehab and addiction, mental and behavioral health providers, and any other clinics working with urine samples. If you have any need to determine if the specimen you're working with is valid or if you just want to ensure the greatest verification of your results, VDx is a great help. Working with QualiTox will provide you with not only fast turn-around times, but also testing that will guarantee you accurate and valid results.
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The QualiTox Difference
When you partner with QualiTox Laboratories, you’ll get simple, clear, fast, and accurate results. We strive to provide a hassle-free experience for the providers we work with, so when you have a question or need to speak with us directly, our technicians are on-hand to assist you. Learn more about why you should choose QualiTox for your testing needs.