In this method of antimicrobial susceptibility testing, specific volumes of various concentrations of antimicrobial solutions are dispensed into premeasured volumes of molten and cooled agar, which is subsequently poured into standard Petri dishes. Organisms are inoculated onto the plate. What type of antimicrobial susceptibility testing is this?
A) Macrodilution
B) Broth dilution
C) Disk diffusion
D) Agar dilution

Question

Quizplus · Accepted Answer

The description provided matches the method of agar dilution, which involves dispensing antimicrobial solutions into agar and inoculating organisms onto the plate. Macrodilution and broth dilution both involve testing the antimicrobial activity in liquid media, while disk diffusion involves using pre-made paper disks containing a fixed amount of antimicrobial agent.

In This Method of Antimicrobial Susceptibility Testing, Specific Volumes of Various