Antisepsis can be defined as......?

• The presence of pathogens or their toxic products in the blood

• Freedom from infection

• Prevention of sepsis by inhibition or destruction of microorganisms

• The complete elimination of microorganisms including spores

Sterilization can be defined as......?

• The presence of pathogens or their toxic products in the blood

• Freedom from infection

• Prevention of sepsis by inhibition or destruction of microorganisms

• The complete elimination of microorganisms including spores

In relation to the use of ultrasonic cleaners, which statement is false?

• Ultrasonic cleaners utilize cavitation bubbles to loosen debris

• Typical vibration frequencies exceed 20,000 vibrations per second

• The temperature within the ultrasonic cleaner should be at least 45 C

• Cycles frequently last 15 minutes

When using Ethylene Oxide, the temperature of the room should be at least....?

• 10 C

• 15 C

• 20 C

• 25 C

Sterilization using a hot air oven is not suitable for....?

• Glassware

• Oils

• Diathermy cables

• Surgical Scissors

Browne's tubes will change colour from orange to....... when the appropriate temperature has been maintained for the time required for sterilization to occur?

• Green

• Brown

• Black

• Beige

Due to health and safety risks, which method of sterilization is only utilized in large industrial settings?

• Glutaraldehyde

• Gamma Irradiation

• Ethylene Oxide

• Hydrogen Peroxide

Which of the following is not a hazard commonly associated with the use of Ethylene Oxide?

• Inflammable

• Carcinogenic with long term exposure

• Irritant to respiratory tissues if inhaled

• Nephrotoxicity

Which type of autoclave is usually only designed for loose instruments?

• Vertical pressure cooker

• Horizontal downward displacement

• Hot air oven

• Vacuum-assisted

Identify the instrument.

• Osteotome

• Rongeur

• Volkmann scoop

• Kearn