Email Newsletters. By Karen Price. Dan Fisher has led the Pitt women's volleyball team to a 44-20 record in his two seasons as coach, and beginning Thursday, he will try to lead the USA to a gold medal in the Pan American Games in Toronto.
Reflex/confirmation testing not performed. Meconium or umbilical cord tissue are preferred over urine for testing of infants Urine testing indicates drug use over the previous 1â10 days, depending on the drug. Meconium may be contaminated by urine; umbilical cord tissue may be contaminated by maternal blood.
General guidelines are available for detection times. Many drugs stay in the system from 2 to 4 days, although chronic use of marijuana can stay in the system for 3 to 4 weeks or even longer after the last use. Drugs with a long half-life, such as diazepam, may also stay in the system for a prolonged period of time. Drugs can be detected in hair samples up to six months, although urine samples are used for most workplace drug screening tests. Examples of drugs that can be detected in hair-testing include alcohol, marijuana, cocaine, and amphetamines. *Note: This table should be used as a general guideline only.