AST Surgical Technologist 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Low level disinfectants kill most microbes, but do not destroy:

Bacteria

Viruses

Spores

Low-level disinfectants are specifically designed to eliminate a majority of pathogens, including many types of bacteria, viruses, and fungi, but they are not effective against spores. Spores, which are a type of dormant form produced by certain bacteria (such as Clostridium and Bacillus species), are highly resistant to environmental stresses and many types of disinfectants.

This resilience means that while low-level disinfectants can adequately reduce the microbial load and are useful for cleaning surfaces that do not require a high level of sterility, they fall short of destroying spores. For situations where spores are a concern, higher-level disinfectants or sterilization methods must be employed to ensure complete microbial control.

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