has her prescribed any prescription medications that may contain cannabis? why were they drug testing your elderly mother anyway? these tests have to be order for a reason; cannabis does not just "show up" on a routine urinalysis. sounds like this young lady got a "willie nelson" contacthigh! just kidding <positive_smiley> it could of been ingested or cannibis oils can enter through skin. i however agree with beth83 its probably a fluke or accident!
is there any way cannibas can show up in a urinalysis other than ingestion? . my mother in law is 85 so it's doubtful that she took up smoking without our knowledge.