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What is a Hep B titer? A Hep B titer generally refers to a special test known as the Hepatitis B Surface Antibody test. The Hep B test is frequently used to check the blood for evidence of immunity to Hepatitis B. It is not a shot or vaccination and the analysis needs to be performed by a laboratory.
Pertussis Titer Blood Test. The Pertussis Titer test is typically done to check for immunity to the bacteria that causes Whooping Cough. Results for this test provide a quantitative measurement for the level of protective antibodies. This test can also be used to aid in the diagnosis of an acute infection.