Clonazepam Level, Blood – Ref LabSee reference lab website for details.https://www.labcorp.com/tests/071712/clonazepamOverviewSpecimenPerformanceCodesAliases71712,PN0002497,Klonopin®Specimen TypeSee reference lab website for details.https://www.labcorp.com/tests/071712/clonazepam