Blood Test

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:

    “His white head hung out like a carpet bag
    and his crotch turned blue as a blood blister,
    and Godfather death, as it is written,
    put a finger on his back
    for the big blackout,
    the big no.”
    —Anne Sexton (1928–1974)

    “The test of a vocation is the love of the drudgery it involves.”
    —Logan Pearsall Smith (1865–1946)