Table 1.

Characteristics of UDS immunoassays in this study.

Target drug(s)FormatManufacturer/BrandCutoff, ng/mLNumber of UDS results
Negative screenPresumptive positive screen, positive confirmationPresumptive positive screen, negative confirmation
AmphetaminesHomogeneous enzyme immunoassayAbbott MULTIGENT5006674736411393
BarbituratesHomogeneous enzyme immunoassayAbbott MULTIGENT20070532119147
BenzodiazepinesHomogeneous enzyme immunoassayAbbott MULTIGENT2005892212412196
BuprenorphineCEDIA®a immunoassayThermo Scientific56204666082231
CannabinoidsHomogeneous enzyme immunoassayAbbott MULTIGENT50618759573228
Cocaine metaboliteHomogeneous enzyme immunoassayAbbott MULTIGENT3006828435710
MethadoneHomogeneous enzyme immunoassayAbbott MULTIGENT300702921100148
OpiatesHomogeneous enzyme immunoassayAbbott MULTIGENT3004747419050306
OxycodoneHomogeneous enzyme immunoassay (DRI®)Thermo Scientific300476361137719
Tricyclic antidepressantsHomogeneous enzyme immunoassayAbbott MULTIGENT3006554835712633
  • a CEDIA, cloned enzyme donor immunoassay.