Anti Streptolysin-O

Overview

  • EPIC Code:
  • IMO41
  • Soft Test Code:
  • ASO1
Alternate Names
  • ASO
  • ASO Titer
Clinical Significance

Elevated values are consistent with an antecedent infection by Group A Streptococci.


Specimen Collection & Preparation

Specimen Requirements:

-AND-

1.0 mL Serum in a SST Gold Top Tube
Minimum Volume:
0.25 mL Serum*

* This volume does not allow for repeat testing

Rejection Criteria:

Plasma


Transport and Storage:
  • Ambient (18-24°C): 2 Days
  • Refrigerated (2-8°C): 8 Days
  • Frozen (-20° C or colder): 6 Months

Clinical Interpretation

Reference Range:

Child <12 years: < 150 IU/mL
Adult: < 200 IU/mL


Methodology:
  • Immunoturbidimetric
Clinical Significance

Elevated values are consistent with an antecedent infection by Group A Streptococci.


Production Schedule

Sites Performed
  • Parkview Regional Medical Center
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry
Turn Around Time

Same Day/1 to 2 days


Coding & Compliance

CDM

01426060


CPT Coding

86060


Medical Necessity Documentation

Duplicate testing on this test is not acceptable per Medicare. Testing to only be done every 365 days.