False positive urine drug screen

    • [PDF File]Urine Drug Screening: A Valuable Office Procedure

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      and common explanations for false-positive and false-negative results. Employment screening, federal regulations, unusual patient behavior, and risk patterns may prompt urine drug screening.

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    • [PDF File]Interpretation of Opiate Urine Drug Screens

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      Interpretation of Opiate Urine Drug Screens Summary Urine drug testing is highly reliable, but false positives can rarely occur for some drugs. As always, clinical judgment is necessary when interpreting test results. The length of time a drug can be detected in the urine varies due to several factors,

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    • Letters False-Positive Urine Drug Screen: Beware the Poppy ...

      False-Positive Urine Drug Screen: Beware the Poppy Seed Bagel To the Editor: In the general practice of caring for my chronic pain patients who use opioid analge- sics as a part of their treatment regimen, I request that they provide random urines for toxicology. The purpose of these evaluations is

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    • [PDF File]Drugs Implicated in False-Positive Results of Drug Screens

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      Drugs Implicated in False-Positive Results of Drug Screens Urine drug screens identify pre-specified drugs and/or their metabolites in urine samples. The screens may ... Table : Drugs Reported to Cause False-Positive Urine Drug Screen Results Y- False-positive for: Drugs Causing False-Positives Amphetamines ADHD agents: atomoxetine ...

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    • [PDF File]False Positive Urine Screens for Phencyclidine

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      False Positive Urine Screens for Phencyclidine Antibody-based enzyme-mediated immunoassays are used in the emergency department for screening of the urine for substances of abuse. These immu-noassays have become the prevailing technology despite limitations such as the weak specificity for phencyclidine (P P).

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    • [PDF File]False-Positive Interferences of Common Urine Drug Screen ...

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      Urine drug screen (UDS) immunoassays are a quick and inexpensive method for determining the presence of drugs of abuse. Many cross-reactivities exist with other analytes, potentially causing a false-positive result in an initial drug screen. Knowledge of these potential interferents is important in determining a course of action for patient care.

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