I hope someone can help here

I need as much information on EtG tests as I can get, it’s a one panel test screening for alcohol. There is so much conflicting information about this test, can it detect EtG up to 80 hours or 120? This may seem small to you but I seriously need to know the answers to some questions regarding how fast we metabolize EtG, I really need to know the exact number of hours before it is metabolized. I can give more info if necessary such as height and weight, but this is more of a scientific issue that seems to have no real concensus, I’ve read so many conflicting articles, most say 80 hrs is the max length of detection but some sources seem to erroneously claim up to 120 hours, please help with my research.