Certified Healthcare Safety Professional (CHSP) Practice Exam

Which disinfectants are known as quaternary ammonium compounds?

1. Antibiotics used for infection control

2. Very effective disinfectants when used properly

3. Common cleaning agents in restaurants

4. Biological agents that promote healing

The correct answer is: Very effective disinfectants when used properly

Quaternary ammonium compounds, often referred to as "quats," are indeed recognized as very effective disinfectants when used properly. These compounds are widely utilized in healthcare settings, as well as in various industries for their antimicrobial properties. They work by disrupting the cell membrane of bacteria and viruses, leading to cell death. When applied correctly, quats can effectively eliminate a broad range of pathogens, making them suitable for disinfecting surfaces and equipment in environments where maintaining hygiene is crucial. Their efficacy often depends on concentration, contact time, and the presence of organic matter, which emphasizes the importance of adhering to manufacturer guidelines for optimal performance. In contrast, other options describe different substances and agents that do not fall under the category of quaternary ammonium compounds. Antibiotics, for instance, target specific microorganisms and are intended for internal use rather than surface disinfection. Common cleaning agents in restaurants may include surfactants and detergents, which serve a different purpose primarily focused on removing dirt and grease rather than disinfecting. Biological agents that promote healing refer to entities like growth factors or certain biological products that assist in wound healing, which are unrelated to the disinfectant properties of quaternary ammonium compounds.