Final answer:
Option a) sterilization indicator tape is the correct option for verifying autoclave sterilization as it changes color when exposed to the correct temperature.
Step-by-step explanation:
To verify that autoclave sterilization has occurred, the use of a sterilization indicator is essential. Among the options, a) Sterilization indicator tape is the correct choice.
This tape has heat-sensitive markings that change color when exposed to the correct sterilization temperature, signifying a successful autoclave cycle. However, it must be noted that while indicator tape confirms the attainment of the necessary temperature, it does not provide information regarding the duration of exposure or the complete sterility of the items.More robust forms of validation include biological indicators such as the spore test with endospores of Geobacillus stearothermophilus, or the Diack tube which contains a temperature-sensitive pellet. These are considered more reliable as they offer comprehensive validation by confirming the destruction of highly resistant endospores.
Autoclaves are critical in medical and laboratory settings as they utilize moist-heat sterilization to eradicate all forms of microbial life, including resistant endospores, thus ensuring the sterility of surgical and laboratory instruments.