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  1. Antistreptolysin O Titer (ASO) Test - Healthline

    Jul 9, 2017 · The ASO titer test can help your doctor determine if you recently had a strep infection by measuring the presence of antistreptolysin antibodies in your blood.

  2. Antistreptolysin O Titer: What This Test Is, When It's Needed ... - WebMD

    May 26, 2025 · Antistreptolysin O Titer is a blood test used to determine if you have an infection caused by a group A streptococcus bacteria. Learn more about this test, when it's needed, and what the …

  3. ASO Titer Test: Normal Range, High Levels, and Uses Explained

    Learn about the ASO titer test, its role in detecting past strep infections, normal and high ASO levels, and its connection to rheumatic fever. Find out when testing is needed.

  4. Anti-streptolysin O Titer (ASOT): Principle, Procedure, and Results

    Aug 8, 2013 · Anti-streptolysin O Titer (ASOT): Principle, Procedure, and Results ... Principle ... Sample Collection and Handling ... Materials used in the ASO Test ... Procedure for Antistreptolysin O Test ...

  5. Anti-Streptolysin O (ASO) Test – Meaning, High Levels, and Normal …

    The Anti-Streptolysin O (ASO) Test detects antibodies formed after Streptococcus infection. Learn about causes, symptoms, normal range, and medical importance.

  6. ASO Test - Purpose, Results, Normal Range, and more

    The ASO test is a valuable diagnostic tool for detecting recent streptococcal infections and their complications. By measuring antistreptolysin O antibodies, it provides critical insights into post …

  7. What Is an ASO Screen and When Do You Need One?

    The Antistreptolysin O (ASO) screen is a blood test that measures the concentration of antibodies produced in response to a specific bacterial toxin released by Group A Streptococcus (GAS) bacteria.

  8. Antistreptolysin O Titer: Reference Range, Interpretation, Collection ...

    Oct 7, 2025 · The antistreptolysin O titer measures the level of antistreptolysin O antibodies in the blood plasma. An antistreptolysin titer greater than 166 Todd units (or >200 IU) is considered a positive...

  9. Antistreptolysin O titer - UCSF Health

    Feb 8, 2024 · Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A streptococcus bacteria. Antibodies are proteins our bodies …

  10. ASO - Overview: Antistrep-O Titer, Serum - Mayo Clinic Laboratories

    Antistrep-O Titer, S Aliases Anti-Hyaluronidase (possible equivalent test) Antistreptolysin-O (ASO) Titer ASO (Antistreptolysin-O) Titer DNA Streptococcal Antibody Hyaluronidase (possible equivalent test) …