… for the retrospective study of drug abuse, but it is necessary to adopt procedures which
distinguish with certainty active users from false positives due to external contamination. Given …

… This review is meant to serve as a guide for practitioners to assess potential false-positive …
of a false positive is identified. In practice, there are many cases where immunoassay positive …

… The search strategy was developed by a medical librarian combining the terms false
positive results, urine, and substance abuse testing and the generic names of 116 medications. …

… validity of hair testing is the risk of false positive due to external contamination. The aim of …
drugs penetrated into hair from external source. In fact, all contaminated subjects were positive …

… many common drugs of abuse, these tests suffer from false negatives and false positives.
Mass … of false positive and false negative results in drugs of abuse testing by immunoassays. …

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, …

… drug screening can detect cases of drug abuse, promote workplace safety, and monitor drug…
Compliance testing is necessary for patients taking controlled drugs. To order and interpret …

… for drug abuse (primarily through screening instruments and not chemical tests), but these
assessments also explore alcohol abuse … , designed to address drug abuse and dependence, …

… of drug abuse or drug dependency. False-negatives can occur when the urine drug …
drug and time of testing, and the quantity of the drug ingested may affect the occurrence of …

… for false positives is possible due to drug cross-reactivity with the antibodies in the test.
False … Approaches that fail to detect the potential for drug abuse among pain management …