Pharyngitis laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Venkata Sivakrishna Kumar Pulivarthi M.B.B.S [2]

Overview

Bacterial Etiology

Group A streptococcus: No single element in the history or physical examination is sensitive or specific enough to exclude or diagnose strep throat.

Diphtheria: The diagnosis, which may be strongly suspected on epidemiologic and clinical grounds, should be confirmed by culture of the pseudomembrane in Loeffler’s or tellurite selective medium.