Originally Posted by DrBill100
SOHT states 15.
Either EtG or FAEE can be used independently for chronic excessive alcohol consumption assessment. For mutual confirmation and for exclusion of false positive or false negative results the determination of both parameters can be useful, in some special cases.
See Society of Hair Testing, Consensus Statement, 2011
However, there is a new Consensus Statement to be voted on in June 2012 which states that it is EtG that should be given priority and that the two should not be used in isolation.
See Proposed Consensus Statement, SOHT, 2012
Certainly EtG is influenced by normal hygiene, and is incorporated into hair erratically. There are more effective, accurate and less expensive tests available particularly when attempting to demonstrate chronic excessive
Please do you know if it would be possible to have someone shown to be chronic with a positive FAEE and "no EtG detected in the hair''? Is it possible for there to be FAEE at those levels and no EtG? Is it possible that the hair was washed or stripped? They do not use hair products.