can a drug test for probation tell the difference from valium and ativan?

they are both benzodiazepines. i get tested for benzodiazepines. i took valium. but i also take ativan. ativan i have a prescription for. valium i don't. hopefully someone who is an expert on or knows what those drugs metabolizes into.

: http://alcoholdrugstreatment.info/can-a-drug-test-for-probation-tell-the-difference-from-valium-and-ativan