QF 4.0 is the latest incarnation. They changed their formula in the last year or so. They are ahead of the labs. I've read on other boards that some nurses, med assistants at collection facilities (surly facisits) are smelling the QF and making people pee again. These situations are exceptions. Collectors at facilities are not supposed to make judgement calls on urine and it is entirely against the protocols set up by SAMSHA, Quest, LabCorp and other labs that test piss.

Go on the QF Web site (google it) and read up on the recall.

BTW, I took a pee test last week (passed, was clean for 60 days) and the nurse told me to fill the cup just above the temp strip. I've read of others who've been told just to fill up to the temp strip, so some of you might catch a break.

If you're caught with not enough pee, you can always say that's all you have in you, depends on the place.

I am now unhappily employed.