I know from past experience that lab tests test in micrograms I believe and are more accurate than an instant home test.
This is entirely false.

For starters, THCA is measured in nanograms per milliliter (ng/ml) on all urine testing devices, from assay screens to the top dog GC/MS.

Second, labs will still perform an initial assay screen. The assays used by the labs and the home tests, which are assays themselves, function on the same principle and neither are more accurate or reliable than the other.
Burnt Toast Reviewed by Burnt Toast on . Passed a home test, but... My girlfried was recently offered a job at Best Buy and has to take a urinalysis. She hasn't smoked in almost 2 weeks and her home test came back clean and the second line was very visible. I know from past experience that lab tests test in micrograms I believe and are more accurate than an instant home test. My question is, what are the chances of her passing her lab test? Rating: 5