ASO
Alternate Names : Anti-Streptolysin O
What do the test results mean?
Test results report the number of Todd units of antibodies per milliliter of blood. Normally, ASO antibody levels are less than 160 Todd units per milliliter.
Higher-than-normal levels of ASO antibodies may indicate:
active streptococcal infection
bacterial endocarditis, an inflammation in the lining of the heart
post-streptococcal glomerulonephritis, an infection in the kidney
rheumatic fever, a disease that may affect the heart and kidneys
scarlet fever, an infection involving the throat and tongue that causes fever, rash, and rapid pulse
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