Urine drugs-of-abuse screening tests are routinely employed in many emergency
departments (ED) for evaluation of drug overdose. Crossreactivity can result in falsepositives …

We developed a rapid, sensitive, and simple-to-use multi-analyte diagnostic device for the
detection of drugs of abuse in urine: the ONTRAK TESTCUP. No sample or reagent …

Illicit-drug users may attempt to falsify results by in vitro adulteration of specimens. We
investigated eight additives (NaCl, Visine, handsoap, Drano, bleach, vinegar, golden-seal …

The transition from presumptive (immunoassay) drug screening to definitive screening has
continued in the practice of analytical toxicology. Development of a ultra-performance liquid …

Persons abusing drugs attempt to adulterate urine specimens in order to beat drug testing.
Dilution of urine in vivo by consuming excess fluid and various detoxifying agents available …

Techniques for the detection of drugs of abuse were compared using data from 43 urine
samples distributed by the United Kingdom National External Quality Assessment Scheme …

Immunochromatographic strips for urine drug screening tests (UDSTs) are common and very
suitable for drug abuse monitoring, but are also highly susceptible to adulterants kept in the …

We report results of a blind study designed to determine the accuracy of drugs-of-abuse
testing in urine as done in 31 laboratories across the United States. The drugs studied were …

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 …

The terms 'false-positive'and 'false-negative'are widely used in discussions of urine drug test
(UDT) results. These terms are inadequate because they are used in different ways by …