What blood tests shoss marijuana? does coke also show up?

Toxicology screen.: Both blood and urine tests can be done for these drugs. Often these are screened for in a toxicology drug panel where drugs like marijuana, Cocaine and alcohol can be checked for.

Urine tests: Most all tests are for specific things. There are thousands of different tests. Most of the time, a determination regarding an individual's drug use is done by urine testing. The standard test from the dept of transportation does test for both thc as well as Cocaine metabolites.