Beginning May 31st, 2023, the following Toxicology blood test’s reference range will be updated to reflect current best practices. Please refer to the Corewell Health Lab Test Directory for new reference ranges.
- Alprazolam Level (LAB718)
- Clonazepam Level (LAB466)
- Lorazepam Level (LAB812)
- Amitriptyline Level (LAB681)
- Nortriptyline Level (LAB80710)
- Citalopram Level (LAB751)
- Clozapine and Metabolite Level (LAB753)
- Diazepam Level (LAB468)
- Flecainide Level (LAB687)
- Imipramine Level (LAB684)
- Desipramine Level (LAB682)
- Lidocaine Level (LAB685)
- Cocaine Level w/ Metabolites (LAB2111029)
- Methadone Level (LAB822)
- Codeine/Morphine Levels (LAB2111030)
- Hydrocodone Level (LAB798)
- Oxycodone Level (LAB835)
