FMGE 2022 — Microbiology

Q: Blood spill in the operation theater is cleaned with _____?

Chlorine compound. ***Chlorine compound*** - **Chlorine-releasing agents** like 1% sodium hypochlorite (bleach) are highly effective against a broad spectrum of microorganisms, including **blood-borne pathogens** such as HIV and Hepatitis B. - Their rapid action and strong oxidizing properties make them the preferred choice for disinfecting surfaces contaminated with blood spills in healthcare settings, ensuring efficient **decontamination**. *Phenolic compounds* - Phenolic compounds are generally used for cleaning and disinfecting **hard, non-porous surfaces** but are less preferred for blood spills due to their slower action and potential for leaving residues. - They are effective against some bacteria and fungi but may not be as rapidly virucidal as chlorine compounds, especially against enveloped viruses in organic matter. *Quaternary ammonium compounds* - **Quaternary ammonium compounds** (Quats) are good general disinfectants for routine cleaning and disinfection of environmental surfaces but have a **lower efficacy against non-enveloped viruses** and spores. - They tend to be inactivated by organic matter, making them less suitable for effective decontamination of **blood spills with high protein content**. *Alcoholic compounds* - **Alcoholic compounds** (e.g., 70% ethanol or isopropanol) are effective disinfectants but are often limited to **small surface areas** or for antiseptic use on skin. - They evaporate quickly and are not ideal for cleaning large blood spills as they may not provide sufficient contact time for effective sterilization in the presence of organic material. [Practice more Microbiology PYQs on OnCourse]

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Blood spill in the operation theater is cleaned with _____?

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