Labcorp only uses the 15 ng/ml level for confirmation purposes only. When I was in the office today I was reading the pamphlet..

Drugs of Abuse Reference Guide for pdf.indd
camelregboy Reviewed by camelregboy on . Wanting Info About Levels Hello all.... I can't help but wonder about the levels of Probation Officers. I was told by my PO she is ONLY sending it out because I take other meds (buspar and seoquel)...otherwise she would had tested it there on the spot. I would imagine that with all the reading I have done from this wonderful site that the "in-house" test level was probably 50ng. Would that mean that the level for sending out would be the same 50ng level and she was wanting to make sure any possible positive would Rating: 5