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2/25/2020

Dilute ua's

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Dilute Urine Drug Screens

Avoiding a Dilute Urine Specimen
 
Urine samples are called DILUTE if the creatinine is less than 20mg/dl. This number is somewhat arbitrary but was chosen because most people must consume significant amounts of water to produce a specimen with a creatinine lower than 20 mg/dl. It has been noted that small muscle mass, being female, and exercise (when followed by increased water consumption) have been associated with lower urine creatinine levels.
 
Dilute urine drug screens are of significance because this is the most popular, easiest and least expensive ways of cheating/ masking urine drug screens. Dilution is also the method by which many over the counter urine detox cleaners work.
 
Since dilute urine can be used to mask the use of drugs and/or alcohol, it is imperative to try to avoid them when testing for probation, court, or other legal situations. Here are some simple guidelines to avoid providing dilute urine.

  • On your test day, avoid all diuretics, including caffeine and energy drinks, until after your test is completed.  
  • Go to the collection site earlier in the day when your bladder still contains more concentrated urine.  
  • If this isn’t possible, try to empty your bladder approximately 2 hours prior to your planned arrival at the collection site, then hold it.  
  • During that time, you should NOT consume more than 20 oz of fluid. Any fluid you do consume should be a substantial fluid, such as milk, smoothie, tomato juice and/or eat a high protein meal or snack. (egg, cheese, meat)
 
Most court, probation, diversion and/or pre-trial service personnel consider dilute specimens as positives, so following these guidelines will help to reduce producing a dilute urine specimen and reduce the risk of further legal consequences.
 
If dilutes specimens persist, it may necessary to discuss a different method of testing and/or getting a physical health checkup to determine possible kidney dysfunction.
download how to avoid a dilute urine specimen

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2/25/2020

thc levels

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UNderstanding THC levels

How to determine NEW USE vs. NO USE in urine drug screen results
Due to the increasing popularity of THC products such as waxes, sugars, and other potent concentrates, which typically range from 60-95% THC, frequent users may show positive results for upwards of 6-8 weeks. Understanding how to interpret UA results is key to determining whether your client is abstaining or continuing to use THC.
 
When looking at THC levels (Urine Drug Testing ONLY) to determine the pattern of use, it is important to consider the THC/ Creatinine Ratio and not the THC level alone. THC levels will fluctuate over the course of the day based on the clients’ hydration status. Morning urine is generally more concentrated than late afternoon urine, following the normal intake of daily fluids. In other words, the same client, testing at different times on the same day, would present with very different THC levels, even though the amount of THC in their system is generally the same.
 
The Ratio takes into consideration both the THC level and the Creatinine level and is calculated by simply dividing the two numbers. This number will be your BASELINE and will become the number by which you compare all future results to. 
EXAMPLE: NO NEW/ DECREASED use of THC since baseline test on 5/17
Example of No New/ Decreased use of THC in urine drug testing
*Results in which the Ratio continually decreases will show that the client has decreased and/or discontinued use of THC. In this example, despite the fluctuations in the THC levels, the decreasing THC/ Creatinine Ratio indicates that there has been decreased and/ or no new use of THC since the baseline test on 5/17.
EXAMPLE: NEW/ INCREASED/ SUSTAINED use of THC since baseline test on 3/22.
Example of New/ Increased use of THC in urine drug testing
*The fluctuating THC/ Creatinine Ratio between testing periods in this example shows evidence of decreased, increased and sustained use of THC. If the ratio on one test, is higher than the ratio on a previous test, this means that there has been new use of THC. Interesting to note: The THC levels on the 6/3 test are considerably higher than the 5/24 test, however, based on the ratio, there was decreased use between testing periods. This is reflected in the creatinine levels of 67.4, which is urine that is significantly less concentrated than that with a creatinine level of 262.6.
In summary, the THC Level ALONE is only an indication that there is still THC present in the system. It is the THC/Creatinine Ratio that is used to determine whether new use of THC has occurred. ​​

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2/25/2020

PEth Testing 101

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what is peth testing?

Phosphatidylethanol (PEth) is an abnormal phospholipid formed in cell tissues following ethanol alcohol exposure. During the metabolism process, PEth accumulates in the blood and exists as a component of the red cell membrane. Since it is formed ONLY when the body is exposed to ingested ethanol, PEth is considered a DIRECT mid to long-term alcohol biomarker, remaining detectable in the blood for up to 28 days. A positive result is an indication of intentional alcohol drinking during the 2-4 weeks prior to the collection of the blood. Additionally, the half-life of PEth is 3-5 days, therefore, one could reasonably assume PEth levels based on the individuals’ last report of use, based on an available baseline reading.

While ethyl glucuronide (EtG) urine drug testing is a sensitive and valuable assay for those individuals in treatment programs for alcohol abuse, recent studies have indicated that low level positive EtG results can be produced by certain agents like hand sanitizers and mouth wash. In contrast, the PEth assay helps to discriminate between incidental exposure and intentional alcohol ingestion, as the volume of alcohol required to trigger a positive PEth result is far above the level commonly attained by incidental exposure.

In summation, positive PEth results are a result of intentional alcohol ingestion and CANNOT be produced by incidental topical exposure to ethanol, ie.) hand sanitizer, gasoline, isopropyl alcohol prep pads, or even vodka itself.

An article published in the November 2018, Vol. 63, No. 6, Journal of Forensic Sciences named “The PEth Blood Test in the Security Environment: What it is; Why it’s Important; and Interpretive Guidelines” is a critically peer reviewed article that I rely on to understand and interpret positive PEth results. Additionally, the same article is currently the gold standard by which USDTL (United States Drug Testing Laboratory), SAMHSA (Substance Abuse & Mental Health Services Administration), and a consensus of Lab Authorities across the globe currently refer to for guidance on PEth education.

This same article refers to the Legal Valuation of PEth testing being accepted by both administrative hearings across the US, including the US 7th Circuit, where it was determined that “PEth in blood is in current use all over the world and have been accepted by professionals in this specialized world” and that “these tests are being used all over the country for family court matters as well”. According to the Texas Bar Association in 2017, “it is clear that the PEth has been judged to be meaningful in aiding court decisions”.

The interpretive guidelines outlined in the article state that:
  • PEth levels < 20ng/ml: “Light or No Consumption” May be related from abstinence to ingestion averaging less than 2 drinks/ day for several days a week.
  • PEth levels 20-200ng/ml: “Significant Consumption” Moderate level of drinking, averaging 2-4 drinks/ day for several days a week. These ranges are consistent with the NIAAA (National Institute of Alcoholism and Alcohol Abuse), SAMHSA (Substance Abuse and Mental Health Administration) and The World Health Organization’s definitions of moderate drinking. For men, no more than 4 drinks/ day or 14 drinks/ week; women, no more than 3 drinks/ day or 7 drinks/ week).
  • PEth levels >200ng/ml: “Heavy Consumption” Heavy drinking at least 4 drinks/ day, several days a week. Anything above 4 drinks/ day is what the NIAAA (National Institute of Alcoholism and Alcohol Abuse), SAMHSA (Substance Abuse and Mental Health Administration) and The World Health Organization consider to be heavy drinking and to be categorized as high to very high risk.

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    Tricia Engelbert, RN, CEO 5280 Drug Testing

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  • Home
  • About Us
    • Reviews
  • Who We Serve
    • Employers >
      • DOT Drug & Alcohol Testing
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      • 5280 Drug Testing - Legal Plus
    • Parents & Families
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  • Drug & Alcohol Testing
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      • Dilute Urine Specimens
      • Marijuana Levels in Urine Drug Testing
      • Detecting Fake Urine
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      • Child Guard Hair Testing
    • Nail Testing
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      • PEth Testing in Legal Cases
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