Blood
Drug-testing a blood sample measures whether or not a drug or a metabolite is in the body at a particular time. These types of tests are considered to be the most accurate way of telling if a person is intoxicated. Blood drug tests are not used very often because they need specialized equipment and medically trained administrators.
Depending on how much marijuana was consumed, it can usually be detected in blood tests within six hours of consumption. After six hours has passed, the concentration of marijuana in the blood decreases significantly. It generally disappears completely within 30 days.
Famous quotes containing the word blood:
“Disinterested intellectual curiosity is the life blood of real civilisation.”
—G.M. (George Macaulay)
“When logics die,
The secret of the soil grows through the eye,
And blood jumps in the sun;
Above the waste allotments the dawn halts.”
—Dylan Thomas (1914–1953)
“Datta: what have we given?
My friend, blood shaking my heart
The awful daring of a moment’s surrender
Which an age of prudence can never retract
By this, and this only, we have existed”
—T.S. (Thomas Stearns)