Which items need high level disinfection but not sterilization?

1. They touch mucous membranes but do not penetrate. 2. Endoscopes are the example given. 3. Semicritical items do not typically need to be sterilized but do require a high level of disinfection. 4. So the answer is semicritical. _Source: OpenStax 'Microbiology', Ch 13 'Control of Microbial Growth'_