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Streptolysin O Antibody
Test CodeASO
Alias/See Also
Epic: LAB219
CPT Codes
86060
Preferred Specimen
Specimen Type: Serum
Collection Container: Serum gel
Specimen Volume: 3 mL
Minimum Volume
0.5 mL
Instructions
Centrifuge and separate cells after clot formation and within 4 hours of collection
Transport Container
Plastic vial
Specimen Stability
Room temperature: 2 days
Refrigerated: 2 days
Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unlabeled, mislabeled, wrong tube type, QNS, wrong preservative, exceeds specimen stability requirements.
Methodology
Turbidimetric/ Immunoturbidimetric
Setup Schedule
Daily
Report Available
1 day
Limitations
References indicate clinically insignificant interference from bilirubin up to 20mg/dL , hemoglobin up to 482 mg/dL or triglycerides up to 1300 mg/dL
Reference Range
< 200 IU/mL
Clinical Significance
Streptolysin-O is an exotoxin produced by Group A Streptococci. Streptolysin-O antibodies can be measured to determine whether a previous Group A Streptococcus infection has caused a poststreptococcal disease, such as scarlet fever, rheumatic fever, or glomerulonephritis.
Performing Laboratory
Inova Laboratories
2832 Juniper Street
Fairfax, VA 22031
Last Updated: March 6, 2023
Last Review: N. Wolford, March 6, 2023