ANTI STREPTOLYSIN - O (ASO) (THY)
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An antistreptolysin O titer (ASO) is a blood test used to determine if you've had a recent infection caused by group A streptococcus bacteria.
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An antistreptolysin O titer (ASO) is a blood test used to determine if you've had a recent infection caused by group A streptococcus bacteria. It's not used to diagnose a current strep infection, such as strep throat.