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Toxicology Laboratory

The Analytical Toxicology Laboratory was established in 1974 and provides an analytical toxicology service to hospitals and other healthcare organisations in the district.

The Laboratory operates an emergency analytical facility for clinical toxicology, that is, the study of chemicals and poisons on the human body.  In addition, services for occupational toxicology (measurement of Nitrous Oxide), drug and volatile substance abuse screening and therapeutic drug monitoring are provided.  The laboratory employs a wide range of analytical techniques including immunoassay, chromatography and mass spectrometry in both routine and research applications.


Results Enquiries: 029 2071 6894
Fax: 029 2035 0142

Laboratory operating hours are: 08:30 - 17:00 Monday to Friday

Toxicology Weekend/Public Holiday Laboratory Service

We regret to inform you that from Saturday 21st January 2017 the availability of the UHL Toxicology out of hours laboratory service will change.

Only work agreed by the Medical Biochemistry on-call medic and transported to UHL by 9am each morning will be processed on that day.

Only the following tests will be available out of hours:

  • Ethylene Glycol
  • Thiopentone/Thiopental [N.B. Specific sample handling requirements apply – please refer to for details]
  • Volatile Alcohols (e.g. Methanol)
  • Paraquat

The Biochemistry on-call medic is contactable through switchboard.

Methotrexate will not be processed at Toxicology UHL on Saturday, Sunday or public holidays. Instead requests will be received at UHW Biochemistry and sent to Singleton Hospital Biochemistry lab for analysis.

The UHL Toxicology lab must be informed of any requests to be sent on a weekend/ Public holiday by 16:00 on a Friday.

Samples collected on a weekend must be sent to UHW Biochemistry laboratory. Transport to Singleton will be arranged by Laboratory staff. Only requests received before 15:00 will be sent on that day.

A contact telephone number for results must be included on the request form.

There is no change to the assay availability during core hours (Mon-Fri).

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