Definition: A laboratory test that measures the presence and amount of antibodies in blood. A positive titer is often indicative of autoimmune disease. The body uses antibodies to attack and remove foreign substances.
Definition of Titer
From Jeri Jewett-Tennant, MPH, for About.com
Updated: August 07, 2008
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
Explore Lupus
Must Reads
About.com Special Features
Learn how you can reduce your your numbers with these nutrition and exercise tips. More >
Keep yourself, and your family, happy and healthy this fall with these tips. More >
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.