1. Penicillin is made by a fungus and used to kill bacterial cells. Therefore, penicillin is an example of a(n)

antibiotic

An antimicrobial that is effective against many types of pathogenic bacteria would be considered a_____agent

Broad spectrum

what information does Kirby Bauer method provide

Sensitivity and resistance to antibiotics

what type of medium is used in the Kirby Bauer Method

Mueller Hinton

What tool is usually used for inoculating the agar when creating a bacterial lawn

sterile swab

After inoculating in this way, how will the plate appear after inoculation?

Non isolated bacterial colonies all over the surface

What are the disks used for in this method

They contain different antibiotics

True or false if the zone of inhibition is large, the organism must be sensitive to the anibiotic

false

When testing for synergism of antibiotics, how many different disks are applied to the bacterial lawn?

2

7. What does synergism mean?

The effectiveness of both antibiotics is better than either antibiotic alone

In a Kirby-Bauer antimicrobial susceptibility test, the antimicrobial disk with the largest zone of inhibition is the one that the test organism is most sensitive to.

False

If the Mueller-Hinton agar plate used for the Kirby-Bauer test is too thin, what effect will this have on the diameter of the zones of inhibition?

They will be larger they would be on a plate of the appropriate thickness

If you test ten different gram-positive and gram-negative organisms and find that almost all of them are sensitive to a particular drug, what would be that drug's spectrum of activity?

Broad spectrum

Please choose the method of antimicrobial susceptibility testing that involves measuring and evaluating zones of inhibition around antibiotic disks placed on a culture of bacteria prior to incubation.

Kirby Bauer test

A chemical compound, regardless of its source (either natural or synthetic), that is capable of killing or inhibiting microorganisms is referred to as

an antimicrobial

Which choice below briefly describes the Kirby-Bauer method of antimicrobic sensitivity testing?

disk diffusion