Blood sample
Blood Sample
A blood sample is a small quantity of blood taken from a person's body, typically via a needle, for diagnostic or therapeutic purposes.
Pronunciation
- /ˈblʌd ˈsæmpl/
Etymology
The term "blood sample" is derived from the Old English blōd and the Middle English sampel or saumple, meaning a representative portion.
Procedure
A blood sample is usually drawn from a vein in the arm using a needle, a process known as venipuncture. The site of the puncture is often cleansed with an antiseptic to prevent infection. The blood is then collected in a vial or syringe.
Uses
Blood samples are used in a variety of medical tests, known as blood tests, to check for certain diseases and conditions. They can also be used to check the function of your organs and show how well treatments are working.
Related Terms
- Venipuncture: The process of obtaining intravenous access for the purpose of intravenous therapy or for blood sampling of venous blood.
- Blood Tests: Tests performed on a blood sample to check for various conditions and diseases.
- Phlebotomy: The act of drawing or removing blood from the circulatory system through a cut (incision) or puncture for the purpose of medical testing, transfusions, donations, or research.
- Hematology: The branch of medicine concerned with the study of the cause, prognosis, treatment, and prevention of diseases related to blood.
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