Positive results represent concentrations of drugs above the European Workplace Testing Thresholds with the exception of benzodiazepines. We have lowered the cut off for this class of drug to 10ug/L to increase the detection of benzodiazepines.
Bromazolam, Etizolam, Flualprazolam, Flubromazolam, THC-COOH glucuronide, Buprenorphine glucuronide and Norbuprenorphine glucuronide will be qualitative only.
Drugs without a cut-off have been assigned one based on chemically similar compounds.
