Background: Monitoring drug treatment is important to assess the therapeutic effects and to
prevent adverse drug reactions. Unfortunately, the clinical evidence for monitoring is often …

Immunochemical methods of analysis (immunoassays) are based on the use of antibodies
(or derivatives) as chemical reagents for analyte-specific assays. Immunoassays are one of …

In recent decades, urine drug testing in the workplace has become common in many
countries in the world. There have been several studies concerning the use of the urine …

Analytical interference has to be considered when immunoassays are used in clinical
toxicology and urine testing for drugs of abuse [1]. Group-specific im-munoassays such as …

Immunoassays are quantitative analytical methods that make use of antibodies as reagents.
The highly specific binding and large association constants (Ka) of antibodies make them …

Drug-related laboratory test interference or drug/laboratory test interactions (DLTI) are a
major source of laboratory errors. DLTI is of concern with regard to both the clinical …

Urine as a clinical specimen to diagnose infections has been used since ancient times.
Many rapid technologies to assist diagnosis of infections are currently in use. Alongside …

Urine drug testing is common for workplace drug testing, prescription management,
emergency medicine and the criminal justice system. Unsurprisingly, with the significant …

Urinalysis is a commonly utilized laboratory test, and analysis of urine has been studied and
used since ancient times. Urine contains a wide array of metabolites that can provide …

Background: Analytical interference in immunoassays can produce serious errors, but it is
generally considered rare with modern analytical systems. Method: Blood was collected …