When you 1st start regular counseling do they typically drug test you?

I ask because today I start counseling for anxiety and mild depression..they said i’m going to see a nurse and i have no idea why i would see a nurse..do they usually drug test even if you’re not there for anything related to drugs? I’m wondering because yesterday i took one of my dads pain pills for my back (i have 2 slipped discs) i didn’t even think about it being a narcotic or them testing me today!

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