Which tests may be used in the workup of group A streptococcal (GAS) infection?

Updated: Sep 07, 2018
  • Author: Zartash Zafar Khan, MD, FACP; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Depending on disease manifestations, cultures of pharyngeal secretions, blood, cerebrospinal fluid, joint aspirate, leading edge aspirate of cellulitis, skin biopsy specimen, epiglottic secretions, bronchoalveolar lavage fluid, thoracocentesis fluid, or abscess fluid may be sources for locating the organism. In cases of suspected necrotizing fasciitis, a frozen section biopsy obtained in the operating room may be of great value in confirming the diagnosis and may aid in defining how much surgical débridement of devitalized tissue is necessary.

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