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Antimicrobial Agent Susceptibility Testing Quiz

15 Questions

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Antimicrobial Agent Susceptibility Testing Quiz

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Questions and Answers

Which method is most frequently used for measuring the effectiveness of antibiotics against pathogenic microorganisms?

Broth Dilution Method

Disk Diffusion Test

Kirby-Bauer method (correct)

Muller-Hinton Agar Media

What is the main reason for the evolution of resistance among bacteria?

Inadequate antibiotic dosage

Natural bacterial defense mechanisms

Lack of effective antibiotics

Misuse and overuse of antibiotics (correct)

What is the intrinsic resistance of gram negative bacteria to vancomycin due to?

Lack of specific receptors on gram negative bacteria

Inability of the drug to penetrate the outer membrane of the gram negative cell wall (correct)

Inefficiency of vancomycin

Overuse of vancomycin

What does MRSA stand for?

Methicillin-Resistant Staphylococcus Aureus Signup and view all the answers

What is the purpose of Muller-Hinton agar in the Kirby-Bauer method?

To provide a uniform surface for antibiotic diffusion Signup and view all the answers

What is the purpose of the Kirby-Bauer method?

To measure the effectiveness of antibiotics against pathogenic microorganisms Signup and view all the answers

Why are gram negative bacteria intrinsically resistant to vancomycin?

The drug cannot penetrate the outer membrane of the gram negative cell wall Signup and view all the answers

What has led to the evolution of resistance among bacteria?

The misuse and overuse of antibiotics Signup and view all the answers

What is the most frequently used method for determining the susceptibility of microorganisms to different antimicrobial agents?

Kirby-Bauer method Signup and view all the answers

What is the main function of Muller-Hinton agar in the Kirby-Bauer method?

It provides a uniform surface for antibiotic diffusion Signup and view all the answers

Which type of bacteria is Staphylococcus aureus?

Gram-positive cocci Signup and view all the answers

What is the distinguishing feature of Staphylococcus aureus among other Staphylococci?

Forms golden colonies Signup and view all the answers

Which of the following bacteria is not a member of the Staphylococcus genus?

Streptococcus pneumoniae Signup and view all the answers

Which type of bacteria is Clostridium botulinum?

Gram-positive bacilli Signup and view all the answers

Which bacteria are found on the skin and mucous membranes of humans, have a capsule, and produce catalase?

Staphylococcus species Signup and view all the answers