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HelpTest Code LAB1178 Antistreptolysin-O Titer, (ASO) Quantitative, Serum
Reporting Title
ASO
Methodology
Immunoturbidimetric Assay
An elevated ASO titer usually is an indication of a recent infection with a group A beta-hemolytic streptococcus. Also aids in the diagnosis and management of acute rheumatic fever and acute glomerulonephritis.
Performing Laboratory
OhioHealth Laboratory Services-RMH Special Testing
Specimen Requirements
Draw blood in a gold-top serum gel tube(s). Spin down and send 0.5 mL of serum refrigerated.
Note: A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated | 8 days |
| Ambient | 2 days | |
| Frozen | 6 months |
Specimen Transport Temperature
Refrigerate/Frozen OK/Ambient OK
Reference Values
0-200 IU/mL
Day(s) Test Set Up
Monday through Friday Continuously
Saturday and Sunday Day shift only
Test Classification and CPT Coding
86060