to detect more minute traces of thc and cocaine than the drug test one can buy over the counter? on the directions of the over the counter test it says the level of cocaine thy call the "cut off" level is 300ng/ml will the physicians test be able to detect more minute levels of the drug? thank u
Most Physicians themselves do not test. They send to a lab as well. They might have a hospital lab close by or have to send via carrier. Unless they use an EIA, Enzyme Immuno Assay like a dip stick that can change color. Like HCG ( pregnancy) Just a little pregnant is the same. They simply say positive or negative they are rapid assays. Sometimes not as precise as those used in a lab. The OTC ( sold at Pharmacy) are probably manufactured by First Alert or the company that assisted them in manufacturing or bought them out. They have a specificity level and a sensitivity level that is associated with rapid detection but more precise. If your Dr. is sending or using a forensic laboratory and utilizing PCR testing, with ICP/ MS, or some other type of Mass/ Gas spectrometer, they are likely to detect at a lower limit. Most positives though even when utilizing an EIA test, a color change, simply detects the presense of said drug. Enough to claim a positive test.
All and all most are similar enough to know when there is a positive level. Some can be disputed, some require a back-up B sample, but most of the time they get it right. I wish I could tell you that the OTC is better and if you pass that one at home you will be ok with your DR but I can not. You might be and I hope you are.
Good luck Laughlady
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