What is the role of antibody testing in the diagnosis of tonsillitis and peritonsillar abscess (PTA)?

Updated: Apr 06, 2020
  • Author: Udayan K Shah, MD, FACS, FAAP; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Serum may be examined for antistreptococcal antibodies, including antistreptolysin-O antibodies and antideoxyribonuclease (anti-DNAse) B antibodies. Titers are useful for documenting prior infection in persons diagnosed with acute rheumatic fever, glomerulonephritis, or other complications of GABHS pharyngitis.

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