Antistreptolysin O (ASO) Antibodies Blood Test

Antistreptolysin O (ASO) Antibodies Blood Test

Quick Overview

Document exposure to streptococcal streptolysin O. A marked rise in titer or a persistently elevated titer indicates that a Streptococcus infection or poststreptococcal sequelae are present.

Test #006031

$54.00

Availability: In stock

Also Known As ASO
Preparation No special preparation required.
Test Results 1-2 days. May take longer based on weather, holiday or lab delays.

 

Streptolysin is a hemolysin produced by group A streptococci. In an infected individual streptolysin O acts as a protein antigen, and the patient mounts an antibody response. A rise in antibody level begins about one week after infection and peaks two to three weeks later. In the absence of complications or reinfection, the ASO titer will usually fall to preinfection levels within 6 to 12 months. Both clinical and laboratory findings should be correlated in reaching a diagnosis.

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