CRCST Practice Exam

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What do tissue, body fat, and blood substances collectively refer to as in sterilization context?

Biohazardous waste
Gross soil
Infectious pathogens
Contaminants

The correct answer is: Gross soil

Tissue, body fat, and blood substances are collectively referred to as gross soil in the context of sterilization. Gross soil is the visible organic and inorganic debris that must be removed before an item can be effectively sterilized. This type of soil is usually visible to the naked eye and includes materials like blood, tissue, and body fats. It is important to remove gross soil before sterilizing items to ensure the effectiveness of the sterilization process. The other options: A. Biohazardous waste refers to materials that are potentially infectious or harmful to human health. C. Infectious pathogens are disease-causing microorganisms that can be spread through contaminated items. D. Contaminants generally refer to any substances that make an object impure or unclean.