Things That Can Significantly Affect Drug Test Results
Most of the drug test results that are executed produce a simple effect, either a yes or no. These results help determine if a person has a symptom present that is associated with a drug’s usage. However, there are a number of things that change the result and produce a wrong test result, whereby the result should have been positive but after administration, resulted in a negative test result.
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The chain of custody
Most drug tests involve taking a blood sample or samples taken by swabs, which are then sent to the labs for further evaluation and experimentation. These experiments determine the results of the test. There is a chance that the samples sent out get mixed up, or the wrong experimentation is done on them, affecting the test result. Although, this is unlikely as the safety procedures and protocols are strictly followed, which ensure proper labeling and monitoring of the samples. This still remains a possibility that can affect the test results.
Delays between collection and experimentation
The samples collected should be sent out for lab examination as soon as possible to reduce the chances of other external factors, such as changes in temperatures or other factors, impacting the test results. There is a possibility that the results get affected as the experimentation was done very late, or the proper storing of the samples was not ensured.
Excessive water intake
If the test results involve urine samples, the results can be affected due to excessive amount of water intake prior to administrating the test. This is because the piece may get diluted just enough to show a negative drug test result. In order to get a proper reading for the tests, a normal amount of water intake should be ensured.
Samples get tampered
If the samples provided to the labs get tampered with before the experimentation can be done, it will normally result in a negative drug test result. Tampering can be in the form of just adding water to the samples or adding other elements that are required to give a negative test. This is highly unlikely to happen in a reputed facility where the samples are collected. However, people may try to tamper with the results if they fear a positive result.
Stopping drug use a few days before the test
The results can be manipulated if drug use is completely stopped a few days before samples are given. The traces of drug use are much less if the drugs are not taken regularly. This is especially the case if the test involves inspecting oral fluids. The traces of drug use in these forms of tests can be lost entirely if drug use is temporarily stopped.
The article has explained some common ways a drug test result may not give an accurate result of the sample provided. These included lab errors and manipulations by the donors. In order to give an accurate test, the above-mentioned practices must be avoided.