Drug Testing: First: marijuana will stay in your system for weeks. So all tests may be positive for some time. Urine tests change the longer one is abstinent for drugs. Hair tests are permanently positive until you cut the hair off from the time you used drugs.
Answered 8/20/2018
5.1k views
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question