Titer
Titer
Titer (pronounced: /ˈtaɪtər/) is a term used in laboratory medicine to refer to the concentration of a substance in a solution. It is often used in the context of antibody titers, which are tests that measure the presence and amount of antibodies in the blood.
Etymology
The term "titer" originates from the French word "titre", which translates to "title" or "rank". In the context of laboratory medicine, it refers to the 'rank' or concentration of a substance in a solution.
Related Terms
- Antibody: A protein produced by the body's immune system when it detects harmful substances, called antigens.
- Antigen: A toxin or other foreign substance that induces an immune response in the body, especially the production of antibodies.
- Serology: The scientific study or diagnostic examination of blood serum, especially with regard to the response of the immune system to pathogens or introduced substances.
- Dilution: The process of reducing the concentration of a solute in a solution, usually simply by mixing with more solvent.
Usage
In medical and research contexts, a titer is usually expressed as a ratio (e.g., 1:10, 1:100, 1:1000, etc.), which represents the amount of blood or serum that contains a certain concentration of the substance in question. For example, an antibody titer of 1:200 means that up to 200 units of serum, the antibody is still detectable.
See Also
External links
- Medical encyclopedia article on Titer
- Wikipedia's article - Titer
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