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How to Interpret Workplace Drug Test Laboratory Reports with Confidence

Receiving a laboratory drug test report containing findings such as “not-negative/unconfirmed”, “requires further investigation” or “positive” can create immediate challenges for HR, safety and operational teams. Understanding what these findings mean, and how they should be interpreted under the applicable Australian and New Zealand Standards, is critical to ensuring fair, compliant and defensible workplace decisions.

Work Health & Safety (WHS) managers, HR professionals, Return-to-Work coordinators and workplace testing personnel are often required to make decisions based on laboratory reports that contain cut-off concentrations, target drug classes, specimen validity information and complex laboratory confirmation data generated using techniques such as LC-MS/MS and GC-MS/MS.

Making a premature decision based on a misunderstood screening or laboratory result can expose an organisation to safety risks, employee relations issues and potential legal challenges.

Join Alcolizer Technology for a practical and informative webinar exploring the interpretation of workplace drug testing laboratory reports under AS/NZS 4308:2023 (Urine) and AS/NZS 4760:2019 (Oral Fluid). Participants will gain a better understanding of screening and confirmation testing, laboratory reporting terminology, cut-off concentrations, prescription medications and factors that may influence result interpretation.

What You’ll Learn

Screening vs Confirmation

• Understand the difference between screening and confirmation testing and how laboratory confirmation using LC-MS/MS or GC-MS/MS contributes to the final reported result.

Deciphering Australian & New Zealand Standards

• Explore the key differences between AS/NZS 4308:2023 (Urine) and AS/NZS 4760:2019 (Oral Fluid), including cut-off concentrations, reporting requirements and factors that influence detection periods.

Reading and Interpreting Laboratory Reports

• Understand common laboratory terminology, quantitative results, limits of quantitation (LOQ), specimen validity testing and indicators of potential adulteration or substitution.

Prescription, Over-the-Counter Medications & Cross-Reactivity

• Learn how prescribed medications, over-the-counter medicines and other substances may contribute to cross-reactivity, and how these factors are considered during the interpretation of laboratory findings.

Making Defensible Workplace Decisions

• Understand how laboratory results can be interpreted within the context of workplace policies, risk management obligations and procedural fairness requirements.

Event Details

• Date: 27.08.2026
• Time: 11:00am -12:00pm AEST
• Duration: 45 minutes + 15 min live Q&A
• Cost: Complimentary
• Location: Online (Teams Webinar) Register NOW