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Inflammation

ASO antibody blood test (antistreptolysin O)

ASO testing helps detect post-streptococcal complications early. Including it in your health screening supports timely intervention and preventive care.

Doctor's Assessment Included

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.

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.

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

Low ASO levels are normal and indicate no recent streptococcal infection. No symptoms are associated with low levels.

High Levels

Elevated ASO may be associated with post-streptococcal complications including joint pain, fever, skin rash, and kidney inflammation. Persistent elevation warrants medical follow-up.

Lifestyle Tips

Seek prompt treatment for streptococcal throat infections. Good hand hygiene and avoiding close contact with infected individuals can help prevent streptococcal infections.

Frequently Asked Questions

How long do ASO levels stay elevated?
ASO levels typically peak 3-5 weeks after infection and may remain elevated for several months. Your healthcare provider can monitor the trend over time.
Can ASO be elevated without symptoms?
Yes, ASO may be elevated after a mild streptococcal infection without noticeable complications. Follow-up testing helps determine if levels are declining normally.
What is rheumatic fever?
Rheumatic fever is a rare inflammatory condition that can develop after untreated streptococcal infection. It can affect the heart, joints, and nervous system. Consult your healthcare provider for more information.

Tests with related values

These panels measure values from the same category as this marker.

Whoop

A 44-biomarker comprehensive health panel inspired by WHOOP Advanced Labs — a deep look at metabolism, cardiovascular risk, hormones, liver, kidney and inflammation.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol Cortisol DHEA-S Estradiol (E2) Free Testosterone FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Total Testosterone Bicarbonate Calcium Chloride Ferritin Iron (Serum) Magnesium Potassium Sodium Transferrin CRP (C-Reactive Protein) Homocysteine Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Omega-3 Index Total Cholesterol Albumin HOMA-IR ALP (Alkaline Phosphatase) AST (Aspartate Aminotransferase) Bilirubin (Total) Total Protein Urea (BUN) Creatinine Vitamin D (25-OH) eGFR (Estimated Glomerular Filtration Rate) Insulin (Fasting) Leukocyte Differential Transferrin Saturation Lipoprotein(a) Triglycerides Basic Blood Count
€499,-

InsideTracker

A 36-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Magnesium (Intracellular) Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Basic Blood Count
€399,-

ASTO (Antistreptolysin O)

€33,-