Surgical metal instruments should be sterilized by

Autoclave sterilization is appropriate for surgical metal instruments.

A.? High-pressure steam sterilization.

B.? Dry baking.

C.? Filtration for sterilization.

D.? Ultraviolet light.

E.? Boiling to sterilize.

The correct answer is A.

Answer Resolution:

Pressure steam sterilization is a moist heat method. Is a clinical application of the most widely used, the most reliable and preferred sterilization method, is the use of high pressure under high temperature saturated steam to kill all microorganisms and their germ cells. Used for: high temperature, high pressure, moisture-resistant items, such as a variety of instruments, dressings, ceramics, glass products, rubber, some drugs, solutions, bacterial culture media sterilization. So surgical instruments with pressure steam sterilization method.

High-pressure steam sterilization, high temperature and high pressure sterilization, not only can kill the general bacteria, fungi and other microorganisms, germ cells, spores also have the effect of killing, is the most reliable, the most common physical sterilization method. Mainly used for items that can withstand high temperature, such as culture medium, metal instruments, glass, enamel, dressings, rubber and some drugs sterilization.

There are more types and styles of high-pressure steam sterilizers, such as:

①The lower exhaust pressure steam sterilizer is a commonly used sterilization equipment, the pressure rises to 103.4kPa (1.05kg/cm2), the temperature reaches 121.3°C, and it is maintained for 15-30 minutes, which can achieve the sterilization purpose.

②Pulsating vacuum pressure steam sterilizer has become the most advanced sterilization equipment. Sterilization conditions require: steam pressure 205.8kPa (2.1kg/cm2), the temperature reaches 132 ° C and maintained for 10 minutes, can kill all microorganisms, including buds, spores, including tenacious resistance.