Decontaminating and Disinfecting Surfaces May Result in a Decreased Removal

question 12

Multiple Choice

Decontaminating and disinfecting surfaces may result in a decreased removal of contaminating organisms when used in combination.This is due to the fact that:

• A)agents are all synergistic and should not be of concern in the laboratory.
• B)agents mixed together may actually inactivate each other or create harmful chemicals resulting in additional hazards.
• C)agents are antagonistic and will not be as effective.
• D)agents are already premixed to maximize sterilization.

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Definitions:

Fisher's Exact Test

A statistical significance test used for small sample sizes, analyzing the association between two categorical variables.

2 × 2 Table

A contingency table with two rows and two columns used to display the frequency distribution of variables' combinations.

Significance Level

The threshold below which a p-value is considered strong enough to reject the null hypothesis in statistical testing.

Degrees of Freedom

The number of independent values or quantities that can vary in the calculation of a statistic, often impacting its distribution.