any member of the subphylum Crustacea (phylum Arthropoda), a group of invertebrate animals consisting of some 45,000 species distributed worldwide. Crabs, lobsters, shrimps, and wood lice are among the best-known crustaceans, but the group also includes an enormous variety of other forms without popular names.
It is thought that infrequent, low-dose users may test positive for Xanax within urine for up to 4 days post-ingestion. Frequent, high-dose users of the drug may test positive for Xanax after a full week post-ingestion via a urinalysis. Results from a urinalysis can be confirmed with technology such as GC/MS.
People who take Xanax on a regular basis maintain a higher drug level in the bloodstream, and it could take several weeks to eliminate all the Xanax from the body. Xanax is excreted from the blood into the urine and is detectable in drug tests. Different drug tests have different sensitivities and may or may not detect a low level of Xanax in the urine. This answer should not be considered medical advice... This answer should not be considered medical advice and should not take the place of a doctorâs visit.