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:

    “When daffodils begin to peer,
    With heigh, the doxy over the dale,
    Why then comes in the sweet o’the year,
    For the red blood reigns in the winter’s pale.”
    —William Shakespeare (1564–1616)

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