The ASO test is ordered when a patient has symptoms that the doctor suspects may be due to an illness caused by a previous streptococcal infection. It is ordered when the symptoms ...

What is Anti-streptolysin O ? Anti-streptolysin O (ASO or ASLO) is the antibody made against streptolysin O, an immunogenic, oxygen-labile hemolytic toxin produced by most strains ...