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.
The most common type of drug tests performed is a urinalysis which tests for the presence of marijuana in your urine. Urinalysis tests account for about 75% of drug tests; hair tests and blood tests make up for the other 24 % with about 1% of tests being saliva based.