The Algorithm Shown Indicates Bacitracin Sensitivity for Only One Group

question 38

Multiple Choice

The algorithm shown indicates bacitracin sensitivity for only one group of Gram-positive cocci.Why is bacitracin sensitivity NOT tested in all of the cases shown?

• A) Testing antibiotic sensitivity in nonhemolytic streptococci is too time-consuming.
• B) All group A beta-hemolytic streptococci are bacitracin sensitive.
• C) Only beta-hemolytic streptococci possess characteristics that make them sensitive to bacitracin.
• D) Nonhemolytic and alpha-hemolytic bacteria are only susceptible to optochin.

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