Labcorp Specialty Labs MEDTOX Search Home / Medical Drug Monitoring & Toxicology Interactive Q&A Medical Drug Monitoring & Toxicology Interactive Q&A LabCorp and its subsidiary, MedTox Laboratories, part of the LabCorp Specialty Testing Group, often receives inquiries from providers regarding drug testing. We have developed the interactive questions and answers below to help educate physicians regarding some commonly asked questions when considering drug testing results. 1. Which time frame best represents the detection time of 6-acetylmorphine in urine? 2. Which of the following is true about 6-acetylmorphine results in urine? 3. Which of the following situations is consistent with a positive test for ethyl glucuronide (EtG)? 4. When can cannabidiol (CBD) use result in a positive urine test for marijuana (tetrahydrocannabinol/THC)? 5. Which of the following is a limitation of oral fluid drug testing? 6. Which of the following is a technical limitation of oral fluid drug testing? 7. A urine drug test report shows the following results: buprenorphine >10,000 ng/mL, norbuprenorphine is negative, and naloxone is present. What patient scenario might be consistent with these results? 8. Which of the following statements is not true regarding blood toxicology testing? 9. Which of the following statements is true regarding methamphetamine “d” and “l” isomers? 10. Which of the following are metabolites of oxycodone (choose all that apply)? Want to discuss these or other technical questions? Need to be set up with an account? Click here to be contacted by a member of our scientific team or your local sales representative. References Cone EJ, Welch P, Mitchell JM, Paul BD. Forensic drug testing for opiates: I. Detection of 6-acetylmorphine in urine as an indicator of recent heroin exposure; drug and assay considerations and detection times. J Anal Toxicol. 1991; 15(1):1-7. PubMed 2046334 Helander A, Bottcher M, Fehr C, et al. Detection times for urinary ethyl glucuronide and ethyl sulfate in heavy drinkers during alcohol detoxification. Alcohol Alcohol. 2009; 44(1):55-61. PubMed 18971292 Statement from FDA, If soap and water are not available, hand sanitizers may be a good alternative. Accessed Sept 4, 2019. https://www.fda.gov/consumers/if-soap-and-water-are-not-available-hand-sanitizers-may-be-good-alternative. Statement from FDA Commissioner Scott Gottlieb, M.D., on signing of the Agriculture Improvement Act and the agency’s regulation of products containing cannabis and cannabis derived compounds FDA Regulation of Cannabis and Cannabis-Derived Products: Questions and Answers Agriculture Improvement Act of 2018 (Agriculture Improvement Act of 2018, Public law 115-334. SEC 297A Page 4908) Lee, D. Oral fluid drug testing in pain management practice: factors to consider before choosing the alternative biological matrix. J App Lab Med. Accessed Sept 4, 2019. http://jalm.aaccjnls.org/content/jalm/2/4/598.full.pdf Quantisal® Collection FLYER. Accessed Sept 4, 2019. https://ensur.invmed.com/ensur/broker/ensurbroker.aspx?code=MKT50445&cs=25696407 Baselt, RC. Disposition of toxic drugs and chemicals in man. 10th ed., Seal Beach, Calif: Biomedical Publications, 2014. Pg. 298. Internal LabCorp data. https://www.labcorp.com/content/q-what-methamphetamine-d-and-l-isomer-testing Legal Menu Privacy Statement and Terms of Use Notice of Nondiscrimination Combatting Modern Slavery and Human Trafficking Statement © 2021 Laboratory Corporation of America® Holdings. All Rights Reserved. We use cookies to enable certain functions and tools on this website, track resources and data used on this website, and promote our products and services. We also share information about your use of our website with our analytics partners. For more information on our use of cookies, please see our Cookie Statement. Cookies Settings Accept Cookies