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

Background Immunoassays provide simple, powerful and inexpensive screening methods
for urine drug screening. Other substances and/or factors may interfere with the test and …

Urine drugs of abuse testing has screening by immunoassay is routinely used for clinical
and forensic applications. Although immunoassay screens can provide a fast result for many …

Context.—Urine drug testing is frequently ordered by health care providers. Immunoassays
are widely used for drug testing, yet have potential limitations, including variable cross …

Urine drug screens are commonly performed to identify drug use or monitor adherence to
drug therapy. The purpose of this retrospective study was to evaluate the true positive and …

Many current “on-site” urine drug-testing products claim performance equivalent to
laboratory testing. Five commercially available products (PharmScreen™, Roche TestCup® …

Background The dilution or adulteration of urine is a serious problem in drugs of abuse
testing. Tests to identify adulteration are currently available. This study investigated the …

Substance abuse is a significant problem in the United States. 1 Over 2.1 million emergency
department visits in 2009 were associated with drug misuse or abuse, of which 47 …

The pressure to reduce the cost of analytic testing makes it tempting to discontinue routine
confirmation of urine specimens positive for drugs of abuse by immunoassay. Beyond the …

Many clinical and forensic toxicology laboratories establish criteria for identifying a random
urine specimen submitted for drug screening as being “normally concentrated” or “dilute” by …