BACKGROUND Exposure to drugs of abuse is frequently assessed using urine drug
screening (UDS) immunoassays. Although fast and relatively inexpensive, UDS assays …

Urine drug testing is frequently used in clinical, employment, educational, and legal settings
and misinterpretation of test results can result in significant adverse consequences for the …

Background Urine drug testing (UDT) is an essential tool to monitor opioid misuse among
patients on chronic opioid therapy. Inaccurate interpretation of UDT can have deleterious …

• Detectable in urine for relatively long period of time• Presence of metabolites (in addition to
parent drug) provides further evidence of drug use• Readily preserved by refrigeration or …

Aim. Products for on-site urine drug testing offer the possibility to perform screening for drugs
of abuse directly at the point-of-care. This is a well-established routine in emergency and …

The performance of the previously validated LUCIO®‐Direct‐enzyme linked immunosorbent
assay (direct ELISA) screening tests according to forensic guidelines is compared to that of …

Background: The number of reports of serious adverse effects and intoxication after the use
of the new drug 4-fluoroamphetamine (4-FA) increases. At the Emergency Department of the …

Background: The analytic performance and accuracy of drug detection below Substance
Abuse and Mental Health Services Administration (SAMHSA) cutoffs is not well known. In …

Dr Allena Ji is the Director of Bioanalytical Services, XenoBiotic Laboratories, Inc., NJ, USA.
She has worked in the bioanalytical field for many years and accumulated rich experience in …

Immunoassays are routinely used to provide rapid urine drug screening results in the clinical
setting. These screening tests are prone to false-positive results and ideally require …