Drug and Alcohol Screening

Western Diagnostic Pathology is the leading provider of drug and alcohol testing services in Western Australia.

Our laboratories adhere to rigorous quality standards which means you can be assured of accurate, legally defensible AS4308 and AS4760 accredited results in a timely manner. 

You’ll also have access to cutting edge, scientifically proven analysis as well as a network of Pathologists, Scientists and recognised expert witnesses.

Partnering with us will enable you to incorporate the industry’s best practices into your organisation’s drug and alcohol testing program, and hence you’ll be reassured your organisation meets the requirements of the Workplace Health and Safety legislation

Our partnership includes assistance in the design, implementation and management of your executive and staff health screening programs.

We offer a range of service and product solutions including:

Laboratory Based Testing


Urine drug testing has been considered the standard in employee testing for many years due to its accuracy, and relative cost. Western Diagnostic Pathology is available to supervise and collect urine specimens from your employees or patients under accredited standards in one of our specialised facilities. At your request, laboratory-based confirmatory testing will be performed when a non-negative result is received from the initial screen.


Whilst urine testing is generally considered to be the standard for accuracy, saliva or oral fluid testing is increasingly recognised as an innovative test format that provides fast and convenient specimen collections. The non-invasive method does not require special collection facilities necessitated by the privacy requirements of a urine collection.


Western Diagnostic Pathology has been collecting hair samples for referral for hair drug testing for over 10 years. Samples are sent to our sister laboratory QML Pathology for testing. Hair drug testing can potentially detect drug use months prior to the time of sample collection. We routinely report around 50 drugs and metabolites.

On-site Screening Products

Western Diagnostic Pathology is able to supply a variety of on-site “instant” test kits that enable you to make informed decisions about issues that might otherwise compromise safety of employees and your business. Our quality standards ensure that our on-site testing products are reliable and validated against laboratory standards.

Lab Based Confirmatory Services

To enable you to rely on the results of an instant on-site testing program, it is a usual requirement that non-negative test results are confirmed by the more sensitive and accurate lab-based analysis. Western Diagnostic Pathology is able to offer this confirmatory service for both saliva and urine specimens, allowing you to incorporate the industry’s best practices into your drug and alcohol testing program.

On-site Screening Services

Western Diagnostic Pathology is able to provide qualified staff to attend on-site at your premises to perform instant drug screen testing and supervised specimen collections. Customised drug screening services can be requested through our Commercial Services Team.

Getting started with us

Getting started with us is easy. To start using Western Diagnostic Pathology as your partner in diagnostics all you need to do is request a quote online.