I am new here and checking all the boards. I have been unable to find the answer to this ?

How long does Lortab/Hydro show in your blood? My PCP has ordered a full blood workup including, liver, cholestrol, diabetes, anemia etc. Just wondering since I have to have this test and I dont want opiates showing up since my PCP does not know I have rec'd meds from a OP. Thanks!