Urine testing goes back 3-5 days for most drugs. Except for THC (marijuana) due to it being fat soluble. One time use goes back approximately 1-5 days.
THC has a half-life of 2-10 days (depending on the quantity/quality of THC ingested). This means that it will take between 2-10 days for only half of the THC to leave your system.
EXAMPLE: For very thin and active donors- the levels should drop by 1/2 in approximately two days. If they are heavey set and sedentary it could take approximately 10 days. For an average person it should take approximately 5 days.
The strength of the marijuana, and frequency of use should be taken into account.
So if you were at 100 ng/mL on a urine test, in 10 days it should be down to 50 ng/mL, as long as there has not been any additional or new usage.
DRUG DETECTION TIME FOR URINALYSIS
|THC (Marijuana)||one time use 2-5 days|
|Alcohol (ETOH/BAC)||8-12 hours|
|Alcohol (EtG)||up to 80 hours|
|LSD||few hours to 5 days|
10 Panel urinalysis
Other testing options available: