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Old December 17, 2012, 09:21 AM   #33
Senior Member
Join Date: June 15, 2011
Location: Lopez Island, WA
Posts: 263
There are at least two specific elemental compounds of THC that can be tested in the blood. The traditional urine tests detect the total including that which is stored "long term" in fat cells. THC/Creatine ratios are able to detect more recent use. The specific tests that are to be used in WA for DUI[M] will test specifically for the THC compound that relates to "current" use and isolate it from the "fat stored" compound.

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