A new laboratory assistant was asked to disinfectant the laboratory bench where specimens are received and processed.The laboratory assistant used concentrated bleach to wipe down the laboratory bench.The discrepancy in this situation is:
A)the laboratory assistant forgot to rinse the laboratory bench after disinfecting it.
B)the laboratory assistant failed to wash the laboratory bench with soap prior to applying the bleach.
C)the laboratory assistant failed to use diluted 10% bleach,thinking that concentrated solution will result in improved disinfection of the bench.
D)the laboratory assistant followed proper procedure and there is no discrepancy.

Question

Quizplus · Accepted Answer

A common mistake is that concentrated disinfectants are more effective in the killing and decontamination of potentially contaminated surfaces.On the contrary,the inclusion of water assists in the breaking of hydrogen bonds that are essential in maintaining the structure of organic molecules such as proteins.Failure to dilute concentrated disinfectants results in a decreased effectiveness of the chemical and decontamination of the surface.

A New Laboratory Assistant Was Asked to Disinfectant the Laboratory