What type of sterilization method is used for insulin syringes to maintain sterile conditions?

The correct choice of sterilization method for insulin syringes is chemical sterilization. This method is effective for items that may be sensitive to heat or radiation. Chemical sterilants, such as glutaraldehyde or ethylene oxide, are utilized because they can penetrate surfaces and effectively eliminate microorganisms without compromising the integrity of the syringe materials.

Insulin syringes are typically made of plastics that may lose their structural properties when subjected to high temperatures used in heat sterilization or can be damaged by radiation. Therefore, chemical sterilization ensures that these syringes remain intact and ready for safe use with insulin, preserving their functionality and maintaining sterile conditions.

In contrast, other sterilization methods, like radiation and heat, may not be suitable for all types of syringes due to potential damage or ineffective penetration. Filtration, while useful for certain applications, is primarily utilized to remove particulates from liquids and gases and is not a standalone sterilization method for solid materials like syringes.