Hello! I am reaching out in urgent need to get responses from anyone who may have had experience with a false positive PEth test My boyfriend had what we KNOW to a false positive PEth test as his was 138 ng/mL (I was literally with him daily for a week leading up to the surprise test so I know he hadn't consumed alcohol) and this is affecting his security clearance at his job. We are trying to fight this and they are requesting documentation of other instances of false positive PEth tests. He's on a number of prescriptions including Metformin, Lexapro, Lisinopril, Rosuvastatin, Jardiance, Testosterone and Lantus so I'm currently researching if it is a possibility that any of these could have caused a false positive. His liver is routinely monitored by his doctor due to random elevated enzyme levels so there has to be some biological reason for this false positive. I'm hoping there is someone who has successfully fought a false positive result and can guide me to any documentation that shows either that the test is largely unreliable and unmonitored by the FDC or documentation that would explain how a false positive can occur (other than hand sanitizer). This has greatly affected his job and put his very career in jeopardy even though his EtG was negative. Would appreciate any guidance you can provide.