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ANTI-STREPTOLYSIN O TEST (ASOT)

Synonym(s):
Lab Section Category
View write-up
Specimen Required

​3 mL plain blood

Method

​Latex agglutination

Reference Interval / Value

  1. For adults and children aged 7 years and above:
    Reported as <200 IU/mL if negative.
    If positive, will be reported as 200, 400, 800 or >=1600 IU/mL.
     
  2. For children less than 7 years old:
    Reported as <100 IU/mL if negative.
    If positive, will be reported as 100, 200, 400, 800 or >=1600 IU/mL.
Turnaround Time

​1 -2 days

Day(s) Test Set up

​Monday - Saturday (Saturday morning up to 12 noon).

Last Updated - 13 Jun 2025