What Does The Following Blood Test Report Indicate?

Posted on Sat, 15 Jul 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sat, 15 Jul 2017 Answered on

Fri, 4 Aug 2017 Last reviewed on

Question : What is " ASO Titre" , as per report for my nephew it has come positive. Please advise in detail if possible.attached report as well

Answered by Dr. Diptanshu Das (1 hour later)

Brief Answer:
Could indicate juvenile rheumatoid arthritis or Streptococcal sore throat

Detailed Answer:
Thanks for asking on HealthcareMagic.

Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A streptococcus bacteria. Incidentally some proteins produced by group A streptococcus resemble certain bodily proteins and as the body produces antibodies Antistreptolysin O (ASO) in response to streptolysin O, these crossreact with those bodily proteins and precipitate certain diseases like juvenile rheumatoid arthritis. ASO postivity in your child could be indicative of such a condition. The condition needs to be evaluated further.

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Regards

Above answer was peer-reviewed by : Dr. Nagamani Ng