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:

    “I was born upon thy bank, river,
    My blood flows in thy stream,
    And thou meanderest forever
    At the bottom of my dream.”
    —Henry David Thoreau (1817–1862)

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