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AST (anti-streptolizin titer)

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AST (anti-streptolizin titer)

Accredited Facility E-report Qualified Specialists

This test is done to detect antibodies produced against streptolysin O, a toxin released by Group A Streptococcus bacteria. Elevated levels suggest a recent or past streptococcal infection. It is mainly used to support diagnosis of post-streptococcal complications such as rheumatic fever or post-streptococcal glomerulonephritis.

  • If there are symptoms suggesting recent streptococcal infection.
  • If rheumatic fever or related complications are suspected.
  • If kidney inflammation follows a sore throat or skin infection.
  • If a healthcare provider is evaluating post-infectious autoimmune conditions.
  • No fasting is required.
  • No special preparation is usually needed.
  • Test may be repeated to monitor rising or falling antibody levels.
  • Follow any instructions provided by the laboratory or healthcare provider.
    • AST (anti-streptolizin titer)
    No labs currently offering this test.