I have a different answer-
If this test you did was a simple cup test for a set of drugs, and it tells only positive for the drug class, there is a possibility you could have a false positive, and when they send the urine for confirmatory testing, it will not show a + Benzo test.
When the GC-MS confirmation test is done, it measure the exact drugs in your system down to the nanogram.
We know, that on some UDS (urine drug screen) we see a BENZO + for Sertraline, which is an antidepressant in the Prozac family (SSRI), Sertraline is Zoloft. Despite this association, these are chemically different structures. I don't think this is the cause.
Also- Rohypnol has given many a false + on a urine drug screen. This is what otherwise is caled "Roofies" or the "date rape drug",. if you ever felt like you were falling asleep, or passing out for no known reason at a party....is it possible your drink etc was laced or tampered with this, you might not even remember it. So any recent lapse in your memory? This could be explained by a Roofies and cause the result you have..
We know the anti-inflammatory drug Oxaprosin also gives us a false +. for Benzos. And the prescribing info for this drug now talks about causing a false + for Benzos.
So- basically the problem is Manufacturer specific- each drug screen tests will have drugs that cause a false positive.
The tests can detect some of these drugs up to 30days. So-- any test/procedure/exam you may have had could have called for an injection of a benzo that you are test + for...But if you had no ERvisits, no tests at the hospital, no minor surgeries... No reason for you to have a true +.
So-- the conclusion-
Your urine needed to be and needs to be sent to lab for verification. When the lab does the GC-MS, ALL the drugs that caused a + on the screen will not show up,
and therefore confirm that YOU DID NOT test + for Benzo at all. And then-- you can feel confident that you have a UDS that only shows false positives, not true positives, and a GC-MS confirmation they are not in your system!
That is what You need it sent out for-- you need the GC-MS.
And, make sure what you DO take is in there as a real +.
So- you should test + only for OXY!
I hope that helps--
Here is some info:
ZOLOFT test +: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2728940/
The Rest: http://www.mayoclinicproceedings.com/content/83/1/66.full
I hope this helps you--
But you want to see your GC-MS--
And any decision made by the UDS is an incorrect one.
Let me know if you have any questions, glad to clarify.
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