Quick Answer An antinuclear antibody (ANA) titer of 1:1280 indicates a high concentration of these antibodies in…
antibody titer
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An antibody titer refers to the measurement of the concentration or level of specific antibodies present in the blood. This test is commonly used to determine immunity to infections, evaluate vaccine effectiveness, or diagnose certain diseases. In immunology and clinical practice, antibody titers help assess whether a person has been exposed to a particular pathogen or has developed sufficient immune protection. Understanding antibody titers is essential for tracking immune response and guiding medical decisions.