Why did your HP Wi-Fi printer go offline? A: A Hewlett-Packard printer connected to a Wi-Fi network can go offline for many reasons, including interference with the wireless connection to the printer ... Full Answer > Filed Under:
A drug test for marijuana is the analysis of a biological specimen from your body, using urine, blood, hair, sweat or saliva samples to determine how much of the drug is in your system. Testing for marijuana checks for levels of the active ingredient THC, or more commonly for its metabolite THC-COOH.
Urine testing is able to detect marijuana usage more effectively than a blood test beyond a week. If you suspect someone is abusing marijuana it may be best to use an alternative drug testing method, such as urine testing or hair follicle testing. How Long Does Marijuana Stay in Hair? Hair follicle testing is often considered one of the most accurate methods of drug testing.