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:
“Of Eva first, that for hir wikkednesse
Was al mankinde brought to wrecchednesse,
For which that Jesu Crist himself was slain
That boughte us with his herte blood again—
Lo, heer expres of wommen may ye finde
That womman was the los of al mankinde.”
—Geoffrey Chaucer (1340?–1400)
“There is a parallel between the twos and the tens. Tens are trying to test their abilities again, sizing up and experimenting to discover how to fit in. They don’t mean everything they do and say. They are just testing. . . . Take a good deal of your daughter’s behavior with a grain of salt. Try to handle the really outrageous as matter-of-factly as you would a mistake in grammar or spelling.”
—Stella Chess (20th century)