Re cutoff levels – from an MRO?
Wondering how you would respond to the comments on the discussion list that there can be incidental exposures with levels above 1000. I am dealing with a donor who claims that her only exposure after checking all bottles and ingredients in her house was using Preparation H on a raw area. She indicated the label noted 7% alcohol. Her level was 700. I have no problem with EtG levels about 1000 in general but starting to be a bit concerned about those in the 500-1000. I know there have been a few studies on “tea-totalers” but… even with the Vicks, dilutes, and poppy seed issues, the problems were not picked up until large number of tests were done. Answer: We agree with you regarding the large population studies needed to clarify these issues. The ubiquitous “bell shaped curve” seems to come into play. Studies need to be performed to test the limits of these phenomena. The problem with setting an upper limit for EtG that could be secondary to “incidental exposure” is that there is no cl
