What does negative mean on a drug test

How to read Urine Drug Test Results

what does negative mean on a drug test

Urine test results, although useful for screening, GIVE NO USEFUL QUANTITATIVE NEGATIVE TESTS do NOT mean that a donor is not abusing drugs!.


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When a clinician orders urine drug testing for a patient prescribed chronic opioid therapy COT , it is essential that the results are interpreted correctly because they often have significant clinical implications. A negative result, while initially simple to understand, can be more complicated and requires the clinician to be aware of several factors that can cause the urine sample to test negative for a compound. On the other hand, negative urine drug test results are clinically meaningful, especially when the possibility exists that the patient may be misusing, abusing, or diverting their medications. For the purpose of this article, the authors will focus on the implications of negative test results. The Centers for Disease Control and Prevention have declared prescription drug abuse to be an epidemic in the United States.

A negative drug test result generally means that testing did not detect the presence of a targeted drug or its metabolites in a particular sample. However, in some cases a test result may be reported as negative even if trace amounts of the targeted drug are present in a test sample. Most laboratories apply federal drug testing guidelines when reporting drug test results. These guidelines require that a minimum amount of a drug be present before the test is reported as positive. Under these guidelines, a drug test that detects an amount of a substance that is less than the cut off concentration is reported as a negative drug test result. A negative drug test result may also be called a negative result.

Negative drug test results will be sent to your current or prospective employer. Further testing usually isn't required. 7 sources.
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Urine drug test strips are a popular and inexpensive way to screen for the use of drugs. These easy to use tests determine if a certain level of drugs, also known as the detection level, are present in someone's urine. The test does not tell you how much or how little of the drug is present , but only if it is above the detection level for the test. The intensity of the color of a line on the drug test does not mean anything and should not be interpreted as a measure of the amount of drugs. A faint line on a drug test is still a line, so if you have a faint line in the "T" area of the test then you have a negative drug screen. As you can see in the negative test results photos below, the THC strip is much lighter in color than the OXY test strip, but the test result is still negative.

Some people try to cheat drug tests. Not most people. But many who are worried about it work very hard to game the system. Yet only 3. And people cheat.

Interpreting Negative Urine Drug Test Results

What to know about urine drug screening



The result of these tests is either positive or negative. Drug A drug test is negative no matter how strong or faint the line is - remember, What does this mean?.
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5 thoughts on “What does negative mean on a drug test

  1. The intensity of the color of a line on the drug test does not mean anything and As you can see in the negative test results photos below, the THC strip is much.

  2. The panel drug test screens for the five of the most frequently misused prescription drugs in the United States.

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