Yes, ethanol will usually be included in a general drug triage blood test. The length of time it continues to show up depends on the initial concentration, bust most tests will turn negative in 1-2 days.
Urine tests generally don't test for alcohol.
The more common urine test administered something with a "-5" in it tests for: Cannabis, Cocaine, Amphetamines, PCP, and Opiates.
Not to mention...