Does anyone know exactly how far back they can detect alcohol? Are there different tests? I've read that they can detect alcohol from as far as 3 days back, even if you have just one beer. Is that true? Or is it only 24 hours? I'm confused. Does it depend on the amount of alcohol you consume?

Blood or urine testing?

UA - urine.

The type of testing done, makes the biggest difference.

For urine testing, alcohol can be detected for between 70-100 hours or so.

Perrita, do yourself a favor. Stop drinking alcohol if you know that you will be tested without notice.

If you have a problem with drinking, then get in a program to kick it.