A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a needle, or via fingerprick. Blood tests are used to determine physiological and biochemical states, such as disease, mineral content, drug effectiveness, and organ function. They are also used in drug tests.
Read more about Blood Test: Extraction
Famous quotes containing the words blood and/or test:
“The blood we give the dead to drink
is deeds we do at the will of the dead spirits in us,
not our own live will.”
—Denise Levertov (b. 1923)
“First follow Nature, and your judgment frame
By her just standard, which is still the same;
Unerring Nature, still divinely bright,
One clear, unchanged, and universal light,
Life, force, and beauty must to all impart,
At once the source, and end, and test of art.”
—Alexander Pope (1688–1744)