How long after drinking can EtG be detected?
The answer to this depends, among other things, on how much alcohol an individual has drunk and what reporting limit for EtG is being used. Among persons who are not alcoholics participating in controlled drinking studies, ethanol has been detected in urine samples for up to 2 days after drinking approximately the equivalent of six 12 ounce glasses of beer. EtG has been measured in urine samples for up to 80 hours after heavy ethanol exposure.
