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

1.0 mL Serum in a SST Gold Top Tube


Alternate Specimen

1.0 mL Serum from a Red Top Tube in a Plastic Vial


TransportAndStorage

2 days Ambient
8 days Refrigerated 
6 months Frozen


Collection Instructions

 


Minimum Volume

0.2 mL Serum


Neonatal Volumne

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

1 day


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