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Objectives for the podcast include:

  • Understand drug metabolism and how prescription and illicit drugs and their metabolites are eliminated from the body
  • Learn about drug half-life and windows of detection, and how they are related
  • Gain a deeper understanding of specific variables that can impact a drug's window of detection

To listen to other podcasts in our Topics in Drug Testing series or learn more about the comprehensive drug testing offering from Quest Diagnostics, please visit There you will find our Drug Monitoring Test Directory, as well as educational resources and insights from our team of toxicology experts. At Quest Diagnostics, we are committed to providing you results and insights to support your clinical decisions.


Date: Thursday, August 4, 2022


  • Jeff Gudin, MD, Senior Medical Advisor, Drug Monitoring and Toxicology, Quest Diagnostics
  • Kain J, PharmD, Director, Medical Science Liasion, Quest Diagnostics