OSMT (Ontario Society of Medical Technologists) Practice Exam

Which method is best to ensure complete sterilization of an article?

1. Boiling

2. Steam

3. Waxes

4. Incineration

The correct answer is: Incineration

The method that ensures complete sterilization of an article is incineration. This process involves burning the material at high temperatures, effectively destroying all microorganisms, including resistant spores. Incineration is often used for disposing of contaminated materials, ensuring that pathogens cannot survive. In contrast, boiling and steam methods can effectively kill many types of bacteria and viruses, but they may not guarantee complete sterilization, especially against spores or certain resistant organisms. Waxes, on the other hand, do not provide a method of sterilization; they are often used for coating or preserving materials but do not eliminate microbial life. Thus, incineration stands out as the most reliable method for achieving complete sterilization.