Blood test

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A venipuncture performed using a vacutainer

A blood test, also known as bloodwork, is a laboratory analysis performed on a blood sample. The sample is usually taken from a vein in the arm using a needle, or from a finger. Blood tests[1] are used to determine physiological and biochemical states, such as disease, mineral content, drug effectiveness, and organ function. They are also used to test for certain illegal drugs.

References[change | change source]

  1. "Blood Panel". Archived from the original on 2015-10-18. Retrieved 2013-10-28.