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