 [ Symptoms ] will zofran show up as meth on a drug test my 65 year old mother recently was taken to emergency room and tested positive for meth she is on several prescription drugs she takes iron zofran zantac metformin lasix synthroid diamox inderal actigal prilosec potassium lexapro and ultram she does not use drugs and we have no idea why she tested positive for meth and opiates [ Disease ] dust can be contaminated with staph bacteria on surfaces especially in a hospital setting it is not very likely that dust will be found in an operating room surface disinfection is very important of course to prevent the spread of any pathogen