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HelpTest Code ASOT Anti-Streptolysin O Titre (ASO Titre)
Infectious
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red Top / Gold Top (SSTII)
Volume: 6.0mL, 0.5mL / 5.0mL
Minimum Volume: 0.5mL serum
Sample Stability
Preferred temperatures for storage prior to and during shipping to NUH
| Specimen Type: | Serum |
|---|---|
| Ambient: | 12 hours |
| Refrigerate: | 3 days |
| Frozen: | 7 days |
Reference Interval
< 200 IU/mL
Days and Times Performed
Monday through Friday, TAT 1-3 days
Methodology
Latex Agglutination
Service Code
23105
Update
Last updated 4/4/2019
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Microbiology, 67724343
Useful For
Diagnosis of acute group A streptococcal infection, causing rheumatic fever or glomerulonephritis
Special Instruction
Paired sera is useful in demonstrating a rising titre. Submit acute and convalescent specimens 2 weeks apart.