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 of Jesus Christ can cover a multitude of sins, it seems to me.”
—Denis Diderot (1713–1784)
“A test of what is real is that it is hard and rough. Joys are found in it, not pleasure. What is pleasant belongs to dreams.”
—Simone Weil (1909–1943)