Optochin Susceptibility Test: Introduction, Principle, Test Requirements, Procedure, Result-Interpretation, and Keynotes

Optochin Susceptibility Test-Positive

Optochin Susceptibility Test Optochin Susceptibility Test uses for presumptive identification of Streptococcus pneumoniae from viridans streptococci.  Principle of Optochin Susceptibility Test Ethylhydrocupreine hydrochloride (Optochin), a quinine derivative, selectively inhibits the growth of S. pneumoniae at a very low concentration (5ug/ml). Optochin may also inhibit other viridians streptococci, but only …

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