Aims To assess the utility of biological testing in a general population survey for estimating
prevalence and evaluating self‐report data quality. Design An audio computer‐assisted …

Hair specimens were collected from 322 subjects and analyzed as part of an experimental
study administering household surveys during 1997 to a high-risk community sample of …

Since cocaine in blood rapidly hydrolyzes to benzoylecgonine, cocaine concentrations
determined in postmortem blood may not reflect the presence or concentration of cocaine in the …

Immunoassays for hair testing must satisfy three requirements: (1) They must have cross-reactivity
with parent drug and lipophilic metabolites actually found in hair (2) they must not …

The analytical requirements for analysis of drugs in hair are sensitivity in the range of
picograms per milligram of hair, specificity for lipophilic drugs and absence of matrix effects with …

The objective of these clinical trials was to calculate the performance, limit of detection,
specificity and sensitivity of a novel, semi-quantitative immunoassay for drugs of abuse in saliva …

Naloxone enhanced retention when systemically administered to male F344 rats after training
in a one-trial inhibitory avoidance task. Further, the memory-enhancing ability of naloxone …

Confirmation of presumptive positive urine drug screens, necessary to minimize the reporting
of false-positive results, can be costly and time-consuming. The predictive value model can …

Sweat was collected with the PharmChek ™ sweat patch, and drugs were eluted from the
collection pad of the patch. A solid-phase enzyme immunoassay (EIA) using microtiter plates …

Morphine, the active metabolite of heroin, is rapidly inactivated by glucuronidation at the 3
carbon. Unconjugated (pharmacologically active) morphine was measured in postmortem …