MedlinePlus Medical Encyclopedia: Titer

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Titer

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Definition	Information

Definition

A titer is a measurement of the amount or concentration of a substance in a solution. It usually refers to the amount of medicine or antibodies found in a patient's blood.

Information

Blood titer measurements can be very helpful in determining medical treatment. Antibody titers can tell the doctor if the patient has immunity to diseases such as measles, small pox, and hepatitis. Medication titers can tell if a person is receiving too much medication.

Update Date: 8/28/2007

Updated by: Daniel R Alexander, MD, Department of Internal Medicine, St. Mary's Hospital, Leonardtown, MD. Review provided by VeriMed Healthcare Network.

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