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Vanderbilt Pathology Laboratory Services

Test Directory



ANTI-STREPTOLYSIN O QUANTITATIVE (ASO)

Department: Chemistry
Test Synonym(s): ASO
CPT Codes: 86060
Methodology: Turbidimetric / Immunotubidimetric
Reference Range: CALIPER 0 to <1 yr: 0-30 IU/mL; 1 yr to < 6yrs: 0-104 IU/mL; 6 yrs to <19 yrs: 0-331 IU/mL; Abbott 19 yrs to 150 yrs: 0-200 IU/mL (Pediatric Reference Ranges only verified for serum, see CALIPER Study at CaliperDatabase.com)
Tube Type: Red top tube (no gel)-5 mL
Specimen: Serum
Alternate Specimen: None
Pediatric Requirements: Draw 2 microtainers
Volume: 2 mL serum
Minimum Volume: 0.3 mL serum
Stability: 20-25 C: 2 days; 2-8 C: 2 days; -20 C: 6 months
Reasons for Rejection: Hemolysis; icteric specimens, lipemia and RF
Days Performed: Daily
Times Performed: Continuous
Special Instructions: This assay only detects antibodies to streptolysin O (ASO). It should not be used to screen for all antibodies to the extracellular antigens of Group A Streptococcus (i.e. Streptolysin, Streptokinase, Hyaluronidase, DNase, and NADASE)

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