The article discusses the complexities in interpreting urine drug testing (UDT). It explores the
applicability of immunoassay test to detect a drug or metabolite in a urine and …

Introduction Proper psychiatric evaluation of patients necessitates that the clinician be
vigilant in ruling out secondary causes of symptoms, such as substance-induced symptoms …

Urine drug screens are commonly used in various clinical settings and situations.
Immunoassays are the most commonly available method of testing for urine drug screens in …

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 …

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 …

Background: The term drug screen is a misnomer since it implies screening for all drugs,
which is not possible. Current practice is to limit the testing to the examination of serum for …

Drug testing, commonly used in health care, workplace, and criminal settings, has become
widespread during the past decade. Urine drug screens have been the most common …

INFORMATION TO USERS Page 1 INFORMATION TO USERS This manuscript has been
reproduced from the microfilm master. UMI films the text directly from the original or copy …

• 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 …

Health care professionals are frequently asked questions about false-positive drug testing
results. Testing is a common practice in work settings, rehabilitation programs, the military …