I have been researching this for like and hour and a half or two and I have found a bunch of threads that say acid is rarely tested for and when it is tested for, they have to do a spinal tap. But then I checked erowid and aparantly it can be detected in urin up to 72 hours after you take it. I would like to know if and/or how long it can be detected after you take it if you have a blood drug test. This would be really helpful cuz I'm strongly considering tripping in the next few days.
From erowid, no mention of Spinal Taps. So i wouldnt worry. What are you getting tested for. I could probably tell you if they are likely to test for it. Or other people might be able too. So overall, dont worry too much man.