Drug Testing

Drug Testing

Possible Masking Agent: Zinc Found to Produce False Negatives in ELISA [Enzyme-Linked Immunosorbent Assay] Tests

(Possible Masking Agent: Zinc Found to Produce False Negatives in ELISA [Enzyme-Linked Immunosorbent Assay] Tests) "We conclude that zinc ion (Zn2+) is a potential adulterant in urine samples tested for drugs in routine workplace drug screening under the NIDA-5 panel using ELISA. Its effect in causing potential false-negative results in drug testing is robust and reproducible. This effect appears independent of the mode by which zinc is made available in urine.

Evaluation of Draeger DrugTest 5000 for Detecting Drugs Through Oral Fluid

(Evaluation of Draeger DrugTest 5000 for Detecting Drugs Through Oral Fluid) "DrugTest 5000 screening results were evaluated against Quantisal confirmation data to determine TP [True Positive], TN [True Negative], FP [False Positive], FN [False Negative], diagnostic sensitivity and specificity, and efficiency at various cutoffs (Tables 1 and 2).

Hemp and Detection of THC Through Urinalysis

(Hemp and Detection of THC Through Urinalysis) "Hemp seeds represent the manufacturing starting point for the vast majority of hemp products marketed since the mid-1990s. Hemp seeds are a good source of essential fatty acids, primarily alpha-linolenic acid (omega-3) and ]inoleic acid (omega-6). They are also found in fish, flaxseed, rapeseed oil, pumpkin seeds, and sunflowerseeds. Essential fatty acids (EFA) are necessary fats that humans cannot synthesize, so they must be obtained through diet.

Workplace Drug Test Positivity Rates for Cocaine and Amphetamine

(Workplace Drug Test Positivity Rates for Cocaine and Amphetamine)
"Cocaine Use Is Decreasing
"According to the January to June 2012 DTI oral fluid data, the cocaine positivity rate was down 14.6% compared to 2011, continuing a downward trend from previous years; cocaine oral fluid positives in 2011 were down 10.9% compared to 2010. According to SAMHSA, in 2011, there were an estimated 1.4 million current cocaine users aged 12 or older, comprising 0.5% of the population.
"Amphetamines Use Continues Five-Year Upward Trend

Breath Testing for Other Drugs in DUI Enforcement

(Breath Testing for Other Drugs in DUI Enforcement) "The results of this investigation provide further support to the possibility of using exhaled breath as a readily available specimen for drugs of abuse testing. There is a possibility that exhaled breath will develop into a new matrix for routine drug testing and present an alternative to already used matrices like urine, blood, oral fluid, sweat and hair. Each matrix may have its specific advantages and disadvantages.

DRUID Project Evaluation of Oral Fluid (Saliva) Testing Devices for DUI Enforcement

(DRUID Project Evaluation of Oral Fluid (Saliva) Testing Devices for DUI Enforcement) "It is disturbing that the sensitivities of the cannabis and cocaine tests were all quite low, although further testing of the cocaine tests is desirable due to the low prevalences and the low concentrations encountered in this study. There are several countries in Central and Southern Europe for which these two substance classes are of special interest.

Oral Fluid Test Evaluations for DUI Enforcement

(Oral Fluid Test Evaluations for DUI Enforcement) "It is disturbing that the sensitivities of the cannabis and cocaine tests were all quite low, although further testing of the cocaine tests is desirable due to the low prevalences and the low concentrations encountered in this study. There are several countries in Central and Southern Europe for which these two substance classes are of special interest.

Testing for Drug Use by Drivers

(Testing for Drug Use by Drivers) "Evidence-gathering technology for drugs is not as advanced in terms of ease of use and noninvasiveness as it is for alcohol. Until recently, no simple test police officers could administer to obtain an indication of drug use similar to the preliminary breath test for alcohol has been available. Rather, samples of urine or blood typically must be sent away for laboratory analysis to determine the presence of drugs and their quantification.

Limited Use, Availability of Impairment Testing

(Limited Use, Availability of Impairment Testing) "Collecting information about the performance of impairment testing proved extremely difficult because the field is so small. Only a handful of companies have ever marketed impairment testing systems and there is no list of their names. However, the Institute conducted an extensive networking program based on our contacts in the field that identified what we believe to be every company that has ever marketed impairment tests. There are only 10 such companies. Of these, only 6 manufactured systems for employers.

Testing Costs

(Testing Costs) "None of the State cost estimates identified for this paper showed net savings resulting from proposed drug testing programs, though these are all legislative cost estimates rather than rigorous cost?benefit analyses. Also, none of the State cost estimates identified described anticipated unit costs of drug testing programs. However, an article from a magazine published by The Society for Human Resources Management reported in 2005 that, “testing an applicant or employee ranges from $25 to $44 for urinalysis...

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