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:

    The mind is “ashamed” of the blood. And the blood is destroyed by the mind, actually. Hence palefaces.
    —D.H. (David Herbert)

    Wild roses, at your back porch, break their blood,
    And bud to test surprises of sea air,
    Howard Moss (b. 1922)