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Five Things to Know About the Sweat Patch Drug Test System

February 8, 2012 by Jennie Lee-Pace 11 Comments

Continuous Monitoring

The sweat patch is designed to be worn for seven days.  The sweat patch continuously captures any drug and/or drug metabolites that are excreted in the sweat during the seven-day wear period.  One week of sweat patch monitoring is equivalent to three to four urine specimen tests spread over a week.

 

Difficult to Adulterate and Substitute

Each patch is printed with a unique serial number that the operator records when applying the patch.  All the common methods of adulterating the collection pad leave visible signs that can be detected by the operator who removes the patch. 

 

Detects Six Drugs, Does Not Detect Alcohol

The laboratory analyzes the sweat patch for the presence of cocaine, marijuana, opiates, amphetamine, methamphetamine, and PCP.  The sweat patch captures the parent drug for cocaine, heroin, and marijuana; urine tests detect the metabolites of these drugs.  The patch does not detect alcohol. 

 

Laboratory Test, Not an On-Site test

The patch gives no visible indication of the presence or absence of drugs.  The operator sends the patch to the laboratory, which performs GC/MS confirmation testing on non-negative screening results. 

 

No Expiration Date

The sweat patch consists of an absorbent pad held in place by a semi-permeable adhesive film.  There are no reagents, enzymes, or chemicals in the pad, so there is no expiration date for the patches. 

 

Comments

  1. Rook reebuson says

    December 14, 2019 at 2:09 am

    Does the patch test for DXM? can DXM cause the patch to show a false positive?

    Reply
    • Jennie Lee-Pace says

      December 16, 2019 at 11:15 am

      No. The sweat patch does not screen for DXM, nor can DXM contribute to a false positive test result.

      Reply
  2. Rook Reebuson says

    December 24, 2019 at 1:30 am

    Thank you Jenny I actually forgot to ask about Mucinex DM? Is it a medication that will show on the sweat patch. I have cold and cough issues and I was thinking about medicating with Mucinex DM and I am on the pharmcheck sweat patch, I just don’t want to have problem with it showing up either directly or as a false positive

    Reply
  3. Jake says

    April 17, 2020 at 9:15 pm

    So the Pharmchek sweat patch does not detect alcohol usage?

    Reply
    • Jennie Lee-Pace says

      April 20, 2020 at 9:28 am

      No, it does not detect alcohol. Saliva or urine or breath testing devices can detect alcohol use.

      Reply
  4. Beverly says

    August 28, 2020 at 5:22 pm

    Could energy drinks or diet shakes result in false positives

    Reply
    • Jennie Lee-Pace says

      August 31, 2020 at 8:00 am

      Hi Beverly.

      No. The sweat patch only detects the drugs of abuse.

      Reply
  5. Alex Sosa says

    August 5, 2021 at 7:35 am

    Can Xanax be detected in drug patch ?

    Reply
    • Jennie Lee-Pace says

      August 5, 2021 at 10:46 am

      Xanax is in the benzodiazepine drug class and is currently not detectable using this 5 panel sweat patch. It is detectable with other sweat patches that detect benzodiazepines.

      Reply
  6. Mark Miller says

    November 18, 2022 at 1:21 pm

    What if the subject is injecting the patch using
    needles and 99% isoprophy alcohol.

    Reply
    • Jennie Lee-Pace says

      November 21, 2022 at 10:17 am

      The lab will be able to detect it and identify and adulteration attempt.

      Reply

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Since 1982, AlcoPro has supplied and manufactured the most accurate drug and alcohol testing instruments, kits, and supplies for professional use. We take pride in maintaining our industry-wide reputation for accuracy and quality as we help you—our top priority—perform alcohol and drug screenings and tests with greater precision and confidence.

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