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Test Code:
090-10-0430-01

Order Name:
ASO Titer*

 
Useful For:
A rapid slide test for the qualitative and semi-quantitative determination of antistreptolysin-O in human serum
 
Methodology:
Latex slide Agglutination
 
AliasesName:
Antistreptolysin-O (ASO) Titer 
ASO (Antistreptolysin-O) Titer 
Streptococcal Antibodies, Serum
 
 
 
Test Code:
090-10-0430-01

Order Name:
ASO Titer*

 
Collection Specimen Or Container:
Blood/ Plain Blood (Red Top) 6 mL, 1 tube
 
Specimen Testing Type:
Serum, minimum volume 1 mL
 
Sub Mission Container:
Plastic tube
 
Specimen Stabillity:
Specimen Type Temperature Time
Serum Refrigerated, 2oC to 8oC 72 hours
 
 
 
Test Code:
090-10-0430-01

Order Name:
ASO Titer*

 
Method detail:
Latex slide Agglutination
 
Schedule:
Tested Daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1.5 hours (90 mins)
 
Performing Location:
Hematology, Laboratory Department Tel. 17254
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
090-10-0430-01

Order Name:
ASO Titer*

 
 
Clinical Information:
A number of bacterial antigens have been identified in cultures of group A streptococci. These extracellular products are primarily enzymatic proteins and include streptolysin O, streptokinase, hyaluronidase, deoxyribonucleases (DNases A, B, C, and D), and nicotinamide adenine nucleotidase. Infections by the group A streptococci are unique because they can be followed by the serious nonpurulent complications of rheumatic fever and glomerulonephritis. Recent information suggests that rheumatic fever is associated with infection by certain rheumatogenic serotypes (M1, M3, M5, M6, M18, and M19), while glomerulonephritis follows infection by nephritogenic serotypes (M2, M12, M49, M57, M59, and M60). Glomerulonephritis and rheumatic fever occur following the infection, after a period of latency following the infection, during which the patient is asymptomatic. The latency period for glomerulonephritis is approximately 10 days, and for rheumatic fever the latency period is 20 days.
 
Reference Value:
< 200 IU/ml
 
Interpretation:
Elevated values are consistent with an antecedent infection by group A streptococci.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert, ASOslide, Analyticon® Biotechnologies AG, Am Mühlenberg 10, 35104 Lichtenfels/ Germany
  2. http://www.mayomedicallaboratories.com (Retrieved: 22 Jan 2019)