NAVTA Practice Test 2025 - Free NAVTA Practice Questions and Study Guide

The correct answer is D: Indicator strip inside pack turning color.

Indicator strips are specifically designed to change color when exposed to the conditions necessary for proper sterilization, such as heat and steam. This color change acts as a visual confirmation that the instrument pack has been properly sterilized. Simply having a temperature above 100°F or seeing steam coming out of the pack may not be sufficient indicators of sterilization, as they do not provide a direct confirmation that the necessary conditions for sterilization have been met. Similarly, an indicator showing "Ready" may not be specific enough to verify sterilization, as it may not correlate directly with the physical changes the indicator strip undergoes when exposed to the sterilization process.