Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
ASO antibody blood test (antistreptolysin O)
ASO testing identifies streptococcal antibodies that may indicate infection-related inflammation. Staying on top of infections supports uninterrupted vitality.
What It Measures
This test measures the level of ASO antibodies in your blood. Rising titres suggest a recent streptococcal infection, while declining titres indicate recovery. The test result reflects the immune response to the bacteria. A single measurement says less than two measurements over time, since the trend of the ASO titer can be more informative.
Why It Matters
ASO testing helps identify complications from streptococcal infections, such as rheumatic fever or glomerulonephritis. Early detection supports timely medical intervention. Consult your healthcare provider for interpretation. What are streptococci? Group A streptococcus bacteria can cause a sore throat. Well known examples are strep throat and scarlet fever. After such an infection, the body produces antistreptolysin O antibodies. An ASO antibody blood test may still show this later on. In rare cases, an untreated infection can lead to complications such as rheumatic fever. An ASO test may then help map a possible link. Always discuss your results with your GP. Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
When to Test
Testing may be recommended after a streptococcal throat infection, or if you develop symptoms such as joint pain, skin rashes, or kidney problems following a sore throat.
Symptoms
Low Levels
High Levels
Lifestyle Tips
Seek prompt treatment for streptococcal throat infections. Good hand hygiene and avoiding close contact with infected individuals can help prevent streptococcal infections.