What is the Recommended Contact Time for Most Disinfectants in a Mycobacteriology

Question

What is the recommended contact time for most disinfectants in a mycobacteriology laboratory?
A) 5 minutes
B) 10 to 30 minutes
C) 10 minutes
D) 60 minutes

Accepted Answer

For most disinfectants in a mycobacteriology laboratory, the recommended contact time is 10 to 30 minutes to ensure effective killing of mycobacteria. This is because mycobacteria have a waxy coating on their cell walls that makes them more resistant to disinfection. A longer contact time allows the disinfectant to penetrate the waxy coating and reach the bacteria. Therefore, option B is the best choice.