The ASO titre looks at antibodies after a strep throat infection. It is done for: suspected rheumatic fever or post-strep kidney inflammation.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Suspected rheumatic fever or post-strep kidney inflammation.
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Recent strep infection. Low or negative may mean: No recent strep infection. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Antibodies after a strep throat infection.
Blood
Recent strep infection.
No recent strep infection.
Reference ranges vary by lab, age and sex — always use the range printed on your own report.
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does the ASO titre measure?
Antibodies after a strep throat infection.
Why is the ASO titre done?
Suspected rheumatic fever or post-strep kidney inflammation.
Do I need to fast for the ASO titre?
No fasting needed.
What does a high or positive ASO titre mean?
Recent strep infection.
What does a low or negative ASO titre mean?
No recent strep infection.
What is the normal range for the ASO titre?
Laboratory-specific; see the reference range on your report.
Why is ASO titre done?
Suspected rheumatic fever or post-strep kidney inflammation.
Do I need to prepare or fast for ASO titre?
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Recent strep infection. Low or negative may mean: No recent strep infection. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
SI text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).
Sources: SI health summary (own words); MedlinePlus Lab Tests and CDC as references