What do Chemical Indicators (CIs) measure in the sterilization process?

• A. The duration of sterilization
• B. The temperature of the sterilization environment
• C. The presence or attainment of sterilization parameters
• D. The pressure levels used in sterilization

Answer: (C)

Chemical indicators (CIs) play a crucial role in the sterilization process by confirming that the conditions necessary for sterilization have been met. They are designed to change color or exhibit a specific response when exposed to particular sterilization parameters such as steam, ethylene oxide, or hydrogen peroxide. This change indicates that the items have undergone the necessary exposure to the sterilization agent under the correct conditions of time, temperature, and other specific factors for effective sterilization.

For example, a CI might signal that an instrument has been subjected to the right temperature and for the appropriate duration during steam sterilization. Hence, choice C accurately reflects the primary function of chemical indicators in assessing whether the sterilization criteria have been achieved, rather than measuring factors like duration or temperature independently.

The other options focus on specific parameters of sterilization or processes that do not encompass the comprehensive verification that CIs provide regarding overall sterilization effectiveness.