Hi ! My Name Is Lani, And I Received A

Hi ! my name is lani, and I received a call from a drug screening lab today, and was asked , " do I take any antibiotics, because they could not rule on my test results and cancelled the test, I informed them that I take four high blood medications daily and one AZO tablet for a UTI., the labs reply was that they would forward their test results to the prospective employer, and that they would make the final decision., what does that mean ??