A member asked:

Etg testing: took 4 etg dip test at 300 cutoff over six hours all negative 1hour later took ua sent to lab at 500cutoff and came back presumptive posi?

3 doctors weighed in across 2 answers

Different methods: The dip test and the laboratory test may use different methods and could give different results. Laboratory tests are generally better standardized.

Answered 7/2/2019

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ETG Test: This metabolite of alcohol can be detected up to 80 hours (3-4 days) after ingestion. What was the time frame involved?

Answered 1/21/2018

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