What items are considered semi-critical and require high-level disinfection?

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Multiple Choice

What items are considered semi-critical and require high-level disinfection?

Semi-critical items are those that touch mucous membranes or non‑intact skin but do not enter sterile body areas. Because they contact sites that could allow pathogens to reach the body, these items must be processed to a high level of disinfection, which inactivates bacteria (including mycobacteria), viruses, fungi, and most spores. If possible, sterilization is preferred, especially for heat‑tolerant devices, but when sterilization isn’t feasible, high‑level disinfection is required to reduce the risk of patient infection. Examples include instruments like endoscopes or other devices that contact mucous membranes, whereas items that only touch intact skin require lower levels of disinfection, and devices that enter sterile tissues require sterilization rather than high‑level disinfection.

Semi-critical items are those that touch mucous membranes or non‑intact skin but do not enter sterile body areas. Because they contact sites that could allow pathogens to reach the body, these items must be processed to a high level of disinfection, which inactivates bacteria (including mycobacteria), viruses, fungi, and most spores. If possible, sterilization is preferred, especially for heat‑tolerant devices, but when sterilization isn’t feasible, high‑level disinfection is required to reduce the risk of patient infection. Examples include instruments like endoscopes or other devices that contact mucous membranes, whereas items that only touch intact skin require lower levels of disinfection, and devices that enter sterile tissues require sterilization rather than high‑level disinfection.

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