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:

    “There’s no true drop of blood in him to be truly touched with love; if he be sad, he wants money.”
    —William Shakespeare (1564–1616)

    “The face we see was never young,
    Nor could it ever have been old.

    For he, to whom we had applied
    Our shopman’s test of age and worth,
    Was elemental when he died,
    As he was ancient at his birth:”
    —Edwin Arlington Robinson (1869–1935)