California Registered Dental Assistant (RDA) Written Practice Exam

Which is the minimum temperature a steam sterilizer should reach to achieve sterilization?

1. 100 degrees C

2. 110 degrees C

3. 121 degrees C

4. 130 degrees C

The correct answer is: 121 degrees C

Steam sterilization is a critical process used to destroy all microorganisms and spores on medical equipment, surgical instruments, and other heat-resistant items. The minimum temperature required for sterilization is 121 degrees Celsius as this is the temperature that can effectively kill all microorganisms and spores. Option A and B are incorrect because they are not high enough to achieve sterilization. Option D is incorrect as it is unnecessarily high and may cause damage to the items being sterilized. Therefore, the correct minimum temperature for a steam sterilizer to reach is 121 degrees Celsius.