Which of the following is a characteristic of heat-sensitive sterilization methods?

Heat-sensitive sterilization methods are designed to effectively sterilize instruments that cannot withstand high temperatures without being damaged. Glutaraldehyde is a cold sterilant commonly used in these scenarios because it is effective against a broad spectrum of microorganisms and is suitable for delicate instruments, such as flexible endoscopes, plastic items, and other heat-sensitive materials.

This answered choice is relevant because heat-sensitive sterilization methods prioritize protecting the integrity of delicate instruments while ensuring effective disinfection. The utilization of glutaraldehyde exemplifies a safe and effective way to achieve sterilization without the risk associated with heat.

Other methods mentioned, such as steam sterilization and the association with high temperatures or metallic instruments, do not align with the principles behind heat-sensitive sterilization. Steam sterilization specifically involves high temperatures and is unsuitable for heat-sensitive materials. Similarly, implying these methods are only applicable to metallic instruments overlooks the broader necessity for sterilizing a variety of delicate instruments that do not tolerate heat.