The PEth test is a non-FDA approved "Laboratory Developed Test" (LDT) that was introduced as a "confirmation test" for the EtG test. All of the "research" supporting it confirms alcohol ingestion and supporting the purported cutoff levels can be linked to those who profit from it. There is no regulation or oversight of these tests. The labs can say anything they want about them (and they do). It is no accident that these tests are only being used by the criminal justice system, child custody cases and state licensing boards (doctors, nurses) and some pilots. It is not used in employee drug testing by any unionized occupation or group that has an outside entity advocating for the best interests of the person being tested. This is not simply "junk science" but a racket designed to profit a few at the expense of many and the consequences are far reaching, grave and sometimes permanent. The problem is no counter-forces exist. It is self-evident that those who have been harmed by these tests are not able to muster the resources to provide counter-studies or debunk the experts in their individual cases. The financial conflicts of interest and "bent-science" need to be identified and exposed. There is simply no scientific basis for the misuse of these tests and those promoting and selling them need to be held accountable. A class-action is necessary sooner rather than later. See disruptedphysician.com and search by keyword "LDT" for more history on these tests

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