False positive heroin urine test

    • [PDF File]Urine Drug Screens: The Addition of Routine Fentanyl ...

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      enough in the urine, the instrument will alert the medical laboratory professional of a positive result for that particular drug class. Drug screens conducted by automated immunoassay instruments are available in most community hospitals and are typically the first test used to identify the presence of drug classes in the urine. Most automated drug

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    • [PDF File]How to correctly interpret a urine drug screen result

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      •A positive test result should not simply lead to discharge from treatment, ... •Think of Urine Drug Screen results as a test on the PROVIDER’s treatment quality ... •Consider possibility of false-positive •Consider discussing with an expert (pathologist, pharmacist, chemist) ...

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    • [PDF File]URINE DRUG TESTING – ORDERING AND INTERPRETATION

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      • False positives still occur ** Human Urine: T ~98 deg; > 90 deg for 15 min. pH 4.5-8; SG 1.002-1.03. Ur Cr > 20 mg/dL ** WHAT TO ORDER • Test for illicit drug use: EIA • Test to confirm taking prescribed meds: GCMS (EIA is OK if your lab runs the test for each med – they usually do not – ask!)

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    • [PDF File]Ordering and Interpreting Urine Drug Tests

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      false positive testing – cross-reaction or possible known metabolite (morphine or codeine may → hydromorphone) • Prescribed medication absent: diversion or binging and running out early; false negative (incorrect use of EIA rather than GCMS testing); urine adulterated . False positives. Are the results due to illicit use, a false

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    • [PDF File]Interpretation of Opiate Urine Drug Screens

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      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, including hydration, dosing, metabolism, body mass, urine pH, duration of use, and a

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    • Drug abuse urine tests: false-positive results

      Drug Abuse Urine Tests: False-positive Results Lead author: Joseph A. Woelfel, Ph.D., FASCP, R.Ph., Assistant Editor Health care professionals are frequently asked questions about false-positive drug testing results. Testing is a common practi ce in work settings, rehabilitation programs, the military, and legal and judicial venues.

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

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      as potentially causing false-positives, the results should be verified through confirmatory testing (i.e. MS) or, when feasible, by providing a sample when the drug is no longer in the system. Table : Drugs Reported to Cause False-Positive Urine Drug Screen Results Y- False-positive for: …

      false positive urine drug screen

    • [PDF File]Urine Drug Tests: Ordering and Interpretation

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      A positive urine drug test result has significant ... of urine samples. They can give false-positive and false-negative results, so all results are consid- ... Heroin and morphine 3 days Codeine ...

      false positive urine drug test

    • [DOC File]Laboratory: _________________________________________ Date ...

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      Thus, morphine and morphine glucuronide might both be found in the urine of a person who has taken only heroin. The body also changes codeine to morphine. Therefore, a positive result obtained from the morphine part of the test may indicate heroin, morphine (or its metabolite, morphine glucuronide), and/or codeine use (5, 6).

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    • Can a Drug Test Lead to a False Positive?

      Codeine may be found in the urine of heroin users as a result of codeine present as a contaminant in the morphine used to synthesize the heroin. ... It is also possible for an adulterant to cause false positive initial drug test results, rather than the intended false negative. ... Use at an earlier time may not cause a positive urine test.

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    • [DOC File]Alcohol and Drug Test and Collective Bargaining

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      Think about any foods or supplements you may have consumed that could be responsible for the false positive (e.g. poppy seeds.) If possible, bring them to the lab that conducted your drug test. The lab may try to cross-check your false positive, often using a sample other than urine.

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    • [DOC File]how to pass drug tests

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      As poppy seeds contain morphine and codeine, consumption will provide positive urine test for morphine and codeine about 300 ng/ml. The highest level of morphine from poppy seed consumption has been 11,571 ng/ml and 4,861 respectively. Poppy seeds can also cause positive salvia morphine test up to one hour after poppy seed consumption.

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    • [DOC File]DRUGS OF ABUSE REFERENCE GUIDE - ELSSI Drug Testing

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      This is a Waived Complexity test for Urine, and Moderately Complex for Serum. ... Such specimens may cause false positive or false negative results. ... 1,200 Caffeine 20 Glucose 2,000 Theophylline 20 Canabinol 10 Hemoglobin 1,000 Urea 2,000 Clomiphene 100 Heroin 1 Uric acid 20 ...

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    • [DOC File]Fisher Sci

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      T F 7. A Sure-Vue® Serum/Urine hCG- test cassette without a red line at the control region and a red line at the test region may be reported as positive. T F 8. The Sure-Vue® Serum/Urine hCG- test may be read at 3 minutes for urine specimens and 5 minutes for serum specimens. T F 9. The Sure-Vue® Serum/Urine hCG test may be read at 20 ...

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    • [DOCX File]Drug testing policy - Recruiting Resources: How to Recruit ...

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      Atlas Link. OneStep Opiates/Heroin/Morphine InstaStrip. Cat. No. 121059-50 (50 tests) INTENDED USE. The Atlas Link OneStep Opiate InstaStrip is a rapid, qualitative, competitive binding immunoassay for the determination of Opiate and its metabolites in urine at or above the cutoff level of 300 ng/ml. OneStep Opiate InstaStrip is not intended to monitor drug levels, but only to screen urine for ...

      false positive urine drug screen

    • [DOC File]OneStep Opiates/Heroin/Morphine

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      dark skin may fail the urine test due to the false positive melenin. Drugs. are detected easier in dark haired people when the hair test is used. We are sacrificing too many important rights by allowing drug testing. to continue. Until this unjust drug testing frenzy is put to an end,

      false positive urine drug test

    • [DOC File]Medical Review Officer Manual - SAMHSA

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      A survey conducted several years ago by the National Institute of Drug Abuse, a government agency, found that 20 percent of the labs surveyed mistakenly reported the presence of illegal drugs in drug-free urine samples. False positive test results also occur when drug …

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    • [DOC File]Rapid Exams

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      Contact the employer to tell them the test came up positive for the restricted substance. Send the sample to the laboratory for further testing. Tell the client it was probably a mistake and to take the cup home and return tomorrow with a new sample. List three (3) things you should ask the donor to do when you hand over the urine cup for a sample.

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