Concept explainers
Introduction:
To devise an effective treatment for the infectious disease, the determination of antimicrobial agent which is most effective against a specific pathogen is necessary. Various tests are there to test the effectiveness of antimicrobials like minimum inhibitory concentration test, diffusion susceptibility tests, and minimum bactericidal test.
Answer to Problem 1MC
Correct answer:
Diffusion and dilution tests which expose the pathogens to antimicrobials are designed to determine “which drug is most effective against a particular pathogen and the amount of a drug to use against a particular pathogen”.
Therefore, option (d) is correct.
Option (d) is given as “both b and c”.
Explanation of Solution
Justify the reason for the correct statement:
The tests like diffusion and dilution expose disease-causing pathogens to antimicrobials to determine the amount and effectiveness of antimicrobial test to use against a specific pathogen.
Hence, option (d) is correct.
Justify the reasons for the incorrect statements:
Option (a) is given as “the spectrum of action of a drug”.
Diffusion and dilution tests do not determine the spectrum range of an antimicrobial drug. Hence, it is a wrong answer.
Option (b) is given as “which drug is most effective against a particular pathogen”.
Diffusion and dilution tests determine the effectiveness of a particular drug against a particular pathogen. But these tests also determine the amount of drug which is effective against a particular pathogen. Hence, it is a wrong answer.
Option (c) is given as “none of the above would best represent a
Diffusion and dilution tests determine the amount of drug which is effective against a particular pathogen. But these tests also determine the effectiveness of a particular drug against a particular pathogen. Hence, it is a wrong answer.
Hence, options (a), (b), and (c) are incorrect.
Tests like diffusion and dilution tests are used to determine both the effectiveness and amount of drug against a particular pathogen.
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Chapter 10 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
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