Specimen Validity Testing 101: The Basic Understanding

What is Specimen Validity Testing?

Specimen Validity Testing (SVT) is performed on a urine drug screen specimen to detect substitution, dilution, or adulteration1.

Why is Specimen Validity Testing (SVT) important?

Urine drug screening is a clinical tool that can enhance workplace safety, accurately monitors patients’ medication compliance, and detects illicit drug abuse (including prescribed meds). When assessing urine specimens there are three critical areas of concern:

The detection of a non-prescribed drug, unexpected metabolite, or illicit substance.
A false-positive result.
Specimen tampering by diluting urine, using substitution techniques, or adding a substance to a sample.

Negative results in a subverted urine sample ultimately leads to a misinterpretation of findings and contributes to the ongoing substance abuse problem in the United States. The internet and local stores provide everything someone needs to “pass a urine test,” from general information to products designed to avoid drug detection in the patient’s urine sample.

Why does a lab or Federal workplace need Specimen Validity Testing?

Without SVT, in both the clinical setting and Federal workplace, the use of subversion techniques continues to be an on-going challenge for all. SVT provides clinicians with critical, accurate, and reliable drug test results.

As a practitioner, how do I know if the patient is non-compliant or is abusing drugs?

Specimen Validity Tests can provide you with specific results regarding potential drug abuse, mismanagement of medications, or diversion of prescriptions.

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Can your laboratory detect adulterants or substitution on drug tests?

Prescription drug misuse and illicit drug abuse are growing public health challenges throughout the United States. With subversion techniques on the rise, building a drug of abuse testing profile that accurately screens and confirms drug abuse has never been so important.

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Limitations on medications

Drugs of Abuse Testing, Reagents, Calibrators & Controls

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