Why are pure cultures used for antimicrobial susceptibility testing
Exercise1-Disinfectants
1. What does bactericidal mean?Bacteriostatic?Virucidal?Fungistatic?
2. Why are control cultures necessary in evaluating disinfectants?
3. What factors can influence the activity of a disinfectant?
4. Why do microorganisms differing their response to disinfectants?
5. What microorganisms are most susceptible to disinfectants?
EXERCISE2-AntimicrobialAgentSusceptibilityTestingand Resistance
1. What is meant by antimicrobial resistance?Susceptibility?
2. Why are pure cultures used for antimicrobial susceptibility testing?
3. Would it be acceptable to use a mixed culture for this test?Why?
4. List three factors that can influence the accuracy of the test.
5. When performing a broth dilution test,why is it necessary to include a growth control tube?
A sterility control tube?