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 blood congealing
    black
    between the pleased fingers.”
    —Denise Levertov (b. 1923)

    “The difference between writing a book and being on television is the difference between conceiving a child and having a baby made in a test tube.”
    —Norman Mailer (b. 1923)