A laboratory technician is working with tissue infected with Mycobacterium tuberculosis that has been preserved in formalin for a couple years.After dissecting the tissue,how should the worker sterilize the work area?
A) Wipe down the work area with a 37% formalin solution.
B) Wipe down the work area with a 10% bleach solution.
C) Wipe down the work area with a 50% alcohol solution.
D) Use formaldehyde gas to clean the area.

Question

Quizplus · Accepted Answer

M.tuberculosis can survive for years in formalized specimens.A powerful sterilizer is needed to sterilize this area,and that is 10% bleach.Alcohol is not a sterilizer but rather an antiseptic.Formaldehyde gas is used to disinfect biosafety hoods,but it is not a sterilizer.

A Laboratory Technician Is Working with Tissue Infected with Mycobacterium