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 is moral: the blood is anti-slavery: it runs cold in the veins: the stomach rises with disgust, and curses slavery.”
—Ralph Waldo Emerson (1803–1882)
“This, then, is the test we must set for ourselves; not to march alone but to march in such a way that others will wish to join us.”
—Hubert H. Humphrey (1911–1978)