Please, correct me if I'm wrong

[croatianmum]

I just wrote a previous post about my son's ASO, and it was before reading a post from Buster explaining the ASO very well.

Butafter reading Buster's post, (and maybe it's because of the language), I would like to clearly understeand one thing.

My son's ASO is 260, and he has a strong exerbation for the last 3 weeks.

So, the question is: no metter if ASO is rising, or falling - elevated ASO is still pointing that something in his body reacted to strep?

he can not have ASO higher than normal if there is /was absolutely NO strep ?

So, ASO is an answer of antibody's to strep?

 

 

[Mayzoo]

ASO tests are not 100% accurate in determining whether a person has had a recent strep infection. For example, my daughter's ASO was 6 and her DNASE was <95 while she was in the middle of a 45 day strep infection. Her body apparently does not fight off strep well.

 

However, a high ASO is a great indicator of recent infection. Here is a good site that explains what the ASO test is for: http://labtestsonline.org/understanding/analytes/aso/tab/test

 

"The ASO test is primarily ordered by itself or along with an anti-DNase B to help determine whether a person has had a recent streptococcal infection."

Edited April 1, 2013 by Mayzoo

[croatianmum]

thank You. I jut got results from another lab, and there is ASO even higher it's 275; dnaseB is negative.

but, again, it is a confiramtion that he had a some kind of contact with strep?

[oivay]

• My daughter's levels never rose, even when she actually had strep, and she would get strep fairly often, which was documented by rapid strep tests and/or cultures. She had blood tests for ASO, dnase, etc. at least once a month during her exacerbations and afterward.

The way it was explained to me at the time was that this would suggest she had a selective immunodeficiency toward strep, as in the midst of a fully documented strep infection, you would assume titer levels would rise, but hers did not.

[peglem]

thank You. I jut got results from another lab, and there is ASO even higher it's 275; dnaseB is negative.

but, again, it is a confiramtion that he had a some kind of contact with strep?

Yes, rising titer indicates some kind of contact w/strep, even if just exposure.