By rray, 4 April, 2024 Patient Type Header (Long) Medications that may not be detected Does this Patient Type contain sub types? No Patient Type Details Standard opiate immunoassays test for opium alkaloids and or metabolites incl morphine codeine Semisynthetic opioids may or may not be detected and synthetic opioids will not be detected by opiate immunoassay assays specific for these drugs may be request Semisynthetic opioids Synthetic opioids screen negative on opiate immunoassay