Also Known As: ASO
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An antibody to Streptolysin O, a toxin made by the Group A streptococcus bacteria.
Detect a recent streptococcal infection in a patient who has symptoms that may be due to an illness caused by a previous streptococcal infection.
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REFERENCE INTERVALS FOR ADULTS: Cutoff: <200 IU/mL
INCREASE IN: Recent strep infection.
DECREASE IN: NA