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ASO Titer
Alternate Names : Anti-Streptolysin O Titer
Definition This is a blood test to measure anti-streptolysin O (ASO) antibodies.
Pictures & Images
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Why is the Test Performed?
This test is used to detect prior infection by Group A Streptococcus, the bacterium responsible for diseases such as glomerulonephritis, rheumatic fever, bacterial endocarditis, and scarlet fever.
ASO testing demonstrates the presence of antibodies generated by the body against the enzyme streptolysin O, which is produced by the bacteria and which causes destruction of red blood cells. The ASO antibody may be detected in the blood for weeks or months after the primary infection has been eradicated.
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• Definition
• Why is the Test Performed?
• How is the Test Performed?
• How to Prepare for the Test?
• How will the Test Feel?
• Normal Values
• What do Abnormal Results Mean?
• Special Considerations
• Risks
• Pictures & Images
Topics that might be of interest to you Diseases & Conditions
• Glomerulonephritis
• Infectious Endocarditis
• Rheumatic Fever
• Scarlet Fever
• Strep Throat
Other Topics
• Adolescent Test or Procedure Preparation
• Antibody
• Enzyme
• Infant Test/Procedure Preparation
• Preschooler Test/Procedure Preparation
• School Age Test/Procedure Preparation
• Toddler Test/Procedure Preparation
Review Date : 9/3/2003
Reviewed By : Michael C. Milone, M.D., Ph.D., Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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