Barbiturates include drugs like phenobarbital, secobarbital, butalbital, and amobarbital. LC-MS/MS testing identifies specific barbiturates with high accuracy, distinguishing prescribed medications from illicit use and characterizing the agents involved in suspected overdose.
This test is used to confirm immunoassay screens, monitor patients on prescribed barbiturates, evaluate suspected misuse or overdose, and provide medico-legal documentation. Detection windows vary — phenobarbital can be detected for weeks, while shorter-acting agents are detectable for several days. Sample type is urine.