Butalbital Why Would A LPN Who We Susp. Stole A Duragesic Patch Test Very High (1219) For Butalbital? Is It The Patch?

Why would a LPN who we susp. stole a duragesic patch test very high (1219) for butalbital? Is it the patch? - butalbital

I see that a barbituate is butalbital. I'm curious if the Duragesic would (25mg), this cause, or if it contains a barbituate? + The screen was the only successful drug ...