FAQ's for Our Labratory

Q. What is the purpose of GCMS testing?

A. GCMS stands for Gas Chromatography/Mass Spectrometry. This type of analysis produces data showing a breakdown of all compounds found and then looks at the molecular weight of the compound. A comparison with the known molecular weight of each substance then provides a definitive result. From this result we can see the exact drug or its metabolites and the levels at which these are present. GCMS testing ensures that the result is legally defensible.


Q. What is the purpose of cut-off levels?

A. Cut-off levels are used within the laboratory testing to enable an accurate determination of the probable presence of a drug: ‘positive’ results, or alternatively the indication that no drug was likely to be present: ‘negative’ result. These levels are set in accordance with manufacturer’s and statutory guidelines (where applicable).