If the product you are using says it is Broad Spectrum or contains no THC then you will not test positive for THC if the lab testing your urine or blood is an advanced testing lab.
The same cannot be said about drug test kits purchased online or at retail stores. These test kits are not advanced enough to distinguish between THC and CBD.
If you ever test positive for THC in a situation that matters, immediately go to a local lab in your area and have them take a urine or blood sample. This will allow you to show evidence that you did not have THC in your blood.
However, if you use products advertised as Full Spectrum or containing some THC this may show up on a drug test.