Certified Ophthalmic Medical Technologist (COMT) Practice Exam

What methods can sterilize minor surgery instruments?

1. Only physical sterilization

2. Gas sterilization and boiling

3. Yag laser and autoclave

4. Autoclave, chemical sterilization, and dry heat oven

The correct answer is: Autoclave, chemical sterilization, and dry heat oven

The correct answer encompasses a range of effective sterilization methods suitable for minor surgical instruments. Autoclaving is a widely recognized method that uses steam under pressure to achieve high temperatures, effectively killing a broad spectrum of microorganisms including bacteria, viruses, and spores. This method is particularly reliable for metal instruments. Chemical sterilization involves the use of liquid chemical agents, such as glutaraldehyde or ethylene oxide, which are particularly useful for instruments that cannot withstand high temperatures. This method penetrates complex instruments and provides a means of sterilization in environments that may not have access to heat-based methods. The dry heat oven is another effective sterilization technique that employs elevated temperatures to eliminate microbial life. It is beneficial for sterilizing materials that may be damaged by moisture or steam. By employing a combination of these methods, healthcare providers can ensure that minor surgical instruments are thoroughly sterilized, minimizing the risk of infection during procedures. Each method serves a specific purpose depending on the materials of the instruments and the types of contamination they may encounter. Thus, the comprehensive approach described in the answer is essential for maintaining safety and efficacy in medical practices.