Antistreptolysin (ASO) antibodies

Alphabetical Test listing

Antistreptolysin (ASO) antibodies-13334

  
Antistreptolysin (ASO) antibodies
  
13334
  
LAB13334
  
ASO
  

Document exposure to Streptococcal streptolysin O

  
Serum
  
  
2.0 mL
  

Immediatley following collection, mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

  
  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection
  
  

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x 3

  
  • Gross hemolysis
  • Lipemia
  
LabCorp Burlington (006031): R-LC
  
Mo - Fr, Su
  
1 - 2 days
  

Latex immunoturbidimetry

  

0.0 - 200.0 IU/mL

  

A marked rise in titer or a persistently elevated titer indicates that a Streptococcus infection or poststreptococcal sequelae are present. 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 1 week after infection and peaks 2-3 weeks later. In the absence of complications or reinfection, the ASO titer will usually fall to preinfection levels within 6-12 months. Both clinical and laboratory findings should be correlated in reaching a diagnosis.

  
86060
  
03/27/2019
  
11/11/2019
  
02/16/2021