So have I somehow got lucky and need to cut that out or is it safe to assume that my type of UA won't pick it up since it hasn't yet?
Typical protocol would be to divide the sample into two aliquots. One for immunoassay and one for GC/MS (if needed). If the urine is positive for meth on immunoassay, the second aliquot is sent for GC/MS for confirmation. Obviously at that point it would be confirmed that the immunoassay is a false positive if it was due to ephedrine. So, to answer the question. Ephedrine can cause a false positive on immunoassay. But, due to legal ramifications, liability, etc. the immunoassay positive will always be confirmed through GC/MS. Therefore in actuality ephedrine never causes a false positive on a drug screen.
There is absolutely no need to worry about taking ephedrine for employee drug screens, probation/parole drug screens or any other screens where proper chain of custody protocol is adhered to. A kid who gets spot tested by their parents for example, with a kit they picked up at the drug store, may have some explaining to do. But other than that, taking ephedrine will never effect a drug screen. Take as much as you want.
Rex.
Typical protocol would be to divide the sample into two aliquots. One for immunoassay and one for GC/MS (if needed). If the urine is positive for meth on immunoassay, the second aliquot is sent for GC/MS for confirmation. Obviously at that point it would be confirmed that the immunoassay is a false positive if it was due to ephedrine. So, to answer the question. Ephedrine can cause a false positive on immunoassay. But, due to legal ramifications, liability, etc. the immunoassay positive will always be confirmed through GC/MS. Therefore in actuality ephedrine never causes a false positive on a drug screen.
There is absolutely no need to worry about taking ephedrine for employee drug screens, probation/parole drug screens or any other screens where proper chain of custody protocol is adhered to. A kid who gets spot tested by their parents for example, with a kit they picked up at the drug store, may have some explaining to do. But other than that, taking ephedrine will never effect a drug screen. Take as much as you want.
Rex.
@dragonfire101: do u know anything about hair follicle testing? like detection times etc?
up to six months, can be detected, but 3-4 is more likely the more accurate results. You can specify a segmented hair test also and get a idea how often and about when someone was using a substance.
I going on what the company representatives are stating and the evaluators who perform and develop these test when they come give a presentation for the agency I work for since we use them to send clients.
I can tell you say you do a urine screen and don't test positive for a substance there are other things looked at that would indicate possible use and masking agent used or flushing techniques. Such as PH and creatine are also looked at and have cutoffs were certain range would indicate tampering.
I notice most flush kits use creatine as a masking agent(well i don't know for sure but its listed as an ingredient in most of them), if u were taking a high bodybuilding-esque dose of creatine, and say a general supplement routine, herbs, vitamins(b12 inc..) would it raise an eyebrow for drug screening?
Are you sure... I send people for chain of custody drug screens and was told make sure if they take OTC like ephedrine they stop a few days before or tell the evaluator they take it.