Native American History. Native American cultures in the United States include a wide array of socially and geographically diverse groups, whose nomadic ancestors are believed to have traveled via a long-gone land bridge across the Bering Strait at least 13,000 years ago.
182. Valium can stay in your system and be detected in urine for up to 5-7 days after therapeutic use. Chronic use (over one year) of Valium, however, can be detected much longer. The detection window for Valium in urine screens is up to 4-6 weeks. More here on the detection window and drug testing for Valium.
If you abuse valium, however, it can stay in your urine for as long as 6 weeks in severe addictions. Saliva and blood tests can detect metabolites for up to 10 days while hair follicle tests can detect the drug for up to an extreme 90 days.