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:

    “By blood we live, the hot, the cold,
    To ravage and redeem the world:
    There is no bloodless myth will hold.”
    —Geoffrey Hill (b. 1932)

    “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)