- Serology
Serology is the scientific study of blood serum. In practice, the term usually refers to the
diagnostic identification of antibodies in the serum.cite book | author = Ryan KJ, Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | pages = 247–9 |publisher = McGraw Hill | year = 2004 | isbn = 0838585299 ] Such antibodies are typically formed in response to an infection (against a givenmicroorganism )cite book | author = Washington JA | title = Principles of Diagnosis: Serodiagnosis. "in:" Baron's Medical Microbiology "(Baron S "et al", eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | url = http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.section.5462 | isbn = 0-9631172-1-1 ] , against other foreign proteins (in response, for example, to a mismatchedblood transfusion ), or to one's own proteins (in instances ofautoimmune disease ).Serological tests may be performed for diagnostic purposes when an
infection is suspected, in rheumatic illnesses, and in many other situations, such as checking an individual'sblood type . Serology blood tests help to diagnose patients with certain immune deficiencies associated with the lack ofantibodies , such asX-linked agammaglobulinemia . In such cases, tests for antibodies will be consistently negative.There are several serology techniques that can be used depending on the antibodies being studied. These include
ELISA , agglutination, precipitation,complement-fixation and fluorescent antibodies.Some serological tests are not limited to blood serum, but can also be performed on other bodily fluids such as
semen andsaliva , which have (roughly) similar properties to serum.Serological tests may also be used forensically, generally to link a perpetrator to a piece of evidence (e.g., linking a rapist to a semen sample).
See also
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medical laboratory
*seroconversion
*serovar
*Medical technologist References
External links
* [http://www.nlm.nih.gov/medlineplus/ency/article/003511.htm Serology] -
MedlinePlus Medical Encyclopedia
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