Question

Kirby Bauer

1. How would you expect the zone of inhibition to change in a Kirby Bauer test if the antibiotic concentration added to the filter paper was doubled?

A. Larger

B. Smaller

C. Stay the same

2. How would you expect the zone of inhibition to change in a Kirby Bauer test if the agar depth was doubled?

A. Larger

B. Smaller

C. Stay the same

3. Why would changing the pH, incubation temperature or cell concentration change the results of a Kirby Bauer test? (1-2 sentences)