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druganonymous52 karma

Wow. Well, some clients do not order the validity tests, they only look for the drugs. This is to reduce costs I assume, because they cannot charge you the cost of the drug test. I do on occasion catch synthetic urine (I can recognize it because we use it too to make up our negative controls) when it fails the validity tests.

druganonymous51 karma

For. But as it is currently illegal, I have no qualms about continuing to test for it.

druganonymous51 karma

Maybe a month.

druganonymous44 karma

This happens. I have to go into the store room and pour more out of the donor's bottle into a new tube. If we run out of urine...well... =/ Clients really don't like that.

druganonymous44 karma

Probably THC for a chronic user. It continues to leech out of the fat and into the urine for weeks. A first-time user might be clean after 2-3 days, but someone who uses every day will be positive for a long time.