Urine Testing

Forensic Laboratories has been in the drug testing business for over 25 years.

Our knowledge and capabilities are the best in the industry. We continue to offer one of the widest range of metabolites available in the industry, differentiating the testing we do from abbreviated tests offered from many competitors. Our superior science and technology is respected in the industry and known for producing outstanding results. Forensic Laboratories offers several urine testing programs that allows each physician to pick the program best for their office.

  • Screen, Screen & Confirm or Confirm (POC)
  • Forensic Laboratories provides all necessary supplies
  • Accurate, comprehensive tests
  • Validity Testing Available
    - Specific Gravity
    - pH
    - Creatinine
    - Oxidants

Our programs will provide you with:

Web Based Reports – Easy to read results delivered via fax or online with E-mail notification
Quality – State of the art equipment & procedures
Technical Support – Speak with a board certified Toxicologist (Toll Free)
Customer Service – Dedicated client service staff standing by to serve you
Supplies – Supplies provided by Forensic Laboratories
Shipping – Forensic Laboratories pays all shipping cost on Pain Management Accounts
Sample Storage – All specimens stored for 6 weeks
Billing – Worry free billing handled by Forensic Laboratories


 All drug test confirmations performed by LC/MS/MS

Ethyl Glucuronide/Ethyl Sulfate Alcohol Metabolite Analysis EtG/EtS

Ethyl glucuronide (EtG) is a minor metabolite of ethanol (ethyl alcohol). It is formed in vivo as a consequence of alcohol exposure. A small fraction (0.02%) of a dose of alcohol is conjugated in the liver with glucuronic acid to form ethyl glucuronide, or with sulfuric esters to form ethyl sulfate. These compounds are excreted in the urine.

Ethyl sulfate (EtS) is also a direct metabolite of ethanol similar to EtG. EtG, but not EtS, is sensitive to bacterial hydrolysis. Levels of ß-glucuronidase increase in urinary tract infections, kidney disease and bladder cancer. Elevated levels of this enzyme may result in the breakdown of ethyl glucuronide and a possible negative EtG result following alcohol consumption, but EtS is stable and eliminates this problem.

EtG and EtS can be detected in urine for 3 to 5 days after heavy alcohol use. A positive finding of EtG and EtS in urine provides strong evidence that the person recently been exposed to alcohol, even if the alcohol itself is no longer detectable. Therefore, these compounds are regarded as a biomarkers of alcohol exposure and, potentially, relapses of alcohol use by an individual who is under restriction.

Forensic Laboratories was one of the first laboratories to test for EtG and EtS in urine, and was the first to test for EtG & EtS in oral fluid.