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HelpTest Code LAB219 Antistreptolysin O Screen (ASO)
Department
IMMUNOLOGY
Primary Collection Container
Gold (SST)
Alternate Collection Container
Red Microtainer
Transport
Serum refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Allow specimen to clot completely. Centrifuge, filter, and refrigerate.
Stability
If the test cannot be perfomed on the same day of sample collection, the serum may be stored between 2-8 degrees celcius and test within 48 hours after collection. For longer periods the samples must be frozen (-20 degree celcius)
Minimum Testing Volume
0.5 ml serum
Reference Range
<200 IU/mL
Methodology
Latex agglutination
Performed
Sunday – Saturday
Reported
1-3 days
CPT Codes
86063, 86060 (if quant performed)
Unacceptable Conditions
Plasma, hemolysis, lipemia, or microbial growth.
Additional Information
Screening test, will reflex to quantitative test if positive.