When you go to an obgyn appointment, and a urinalysis is done, will it detect THC? I was told by a lab technician that a drug urine test is completely different from all other urine test, and that the only way your obgyn would know whether or not any THC was present in your urine is if they were specifically looking for it. If the lab technician is accurate in this regard, is it typical for obgyns to automatically do drug urine tests during obgyn visits? Not sure if it matters, but i am living in canada.