If I had one single sip of a mixed drink 30 hours before an EtG swab, will I pass? I am a 5'6'' female, 140 lbs, I exercise regularly and drink lots of water. Please help!

One sip 30 hours before test?

You'll pass.

If I had one single sip of a mixed drink 30 hours before an EtG swab, will I pass? I am a 5'6'' female, 140 lbs, I exercise regularly and drink lots of water. Please help!

Oral swabs detect EtG only a few hours longer than if testing for ethanol itself and represents limited additional value. EtG should not be present by any test method after a "sip" of alcohol and that is particularly true of an oral swab. Hoiseth, 2010 (http://www.jatox.com/index.php/vmchk/Articles/Ethyl-Glucuronide-Concentrations-in-Oral-Fluid-Blood-and-Urine-After-Volunteers-Drank-0.5-and-1.0-g/kg-Doses-of-Ethanol.html)

Who is testing for EtG by this route?

By the way, don't use mouthwash the morning of the test.