What principle do most current automated antimicrobial susceptibility instruments use to read growth?
A) Turbidimetric detection
B) Turbidity suppression
C) Hydrolysis of a fluorogenic growth substrate
D) Carbon dioxide concentration

Question

Quizplus · Accepted Answer

Most current automated antimicrobial susceptibility instruments use the principle of turbidimetric detection to read growth. Turbidity refers to the cloudiness or haziness of a liquid due to the presence of suspended particles. In the case of bacterial growth in a liquid medium, the increase in the number of bacterial cells causes an increase in turbidity, which can be measured by automated instruments. This method can provide rapid and accurate results for antimicrobial susceptibility testing.

What Principle Do Most Current Automated Antimicrobial Susceptibility Instruments Use