Question 1

 How can you achieve precleaning for contaminated instruments?

  • [ ] ultrasonic

  • [ ] Washer disinfector

  • [✓] water gun (CORRECT)

  • [ ] autoclave

Question 2

 Laparoscopes, cystoscopes, hysteroscopes, and arthroscopes should be __________ before being used on another patient.

  • [ ] High level disinfected

  • [ ] Low level disinfected

  • [✓] sterilized (CORRECT)

  • [ ] moderate level disinfected

Question 3

Sterilization papers and laminated film pouches are an example of:

  • [ ] Secondary packaging

  • [✓] Primary packaging (CORRECT)

  • [ ] Transport packaging

  • [ ] Tertiary packaging

Question 4

Which of the following substances may be used for flushing lumens to ensure that no blood remains?

  • [ ] glutaraldehyde

  • [ ] formaldehyde

  • [ ] Peracetic acid

  • [✓] Hydrogen peroxide (CORRECT)

Question 5

As a Central Sterilization technician, you choose the method of sterilization according to:

  • [ ] Your opinion

  • [ ] The type of materials

  • [ ] Manufacturer's instructions

  • [✓] B & C (CORRECT)

Question 6

What is the first step in a washer disinfector?

  • [ ] Rinse

  • [ ] Disinfection

  • [ ] Drying

  • [✓] Prerinse (CORRECT)

Question 7

The first step of handwashing procedures is:

  • [ ] Turn on faucets using a paper towel

  • [✓] Remove all jewelry (CORRECT)

  • [ ] Wet hands and apply liquid soap

  • [ ] Dry hands with clean disposable towels

Question 8

Which of the following materials is used to package single items?

  • [ ] Containers

  • [✓] Plastic pouches (CORRECT)

  • [ ] Non-woven sheets

  • [ ] Textile packs

Question 9

Which type of PPE is used to protect the respiratory tract from airborne aerosols and used to protect mouth, nose, and chin?

  • [✓] Mask (CORRECT)

  • [ ] Gloves

  • [ ] Goggles

  • [ ] Face shield

Question 10

Where is the FIFO (First-In, First-Out) system applied in the central sterilization department?

  • [ ] Decontamination area

  • [ ] Work area

  • [ ] Inspection area

  • [✓] Storage area (CORRECT)

Question 11

All of the following data should be recorded for every sterilizer cycle EXCEPT one:

  • [ ] Date, time, and operator's name

  • [✓] The name of the hospital (CORRECT)

  • [ ] The sterilizer content

  • [ ] The result of biological indicator (if used)

Question 12

High-Level Disinfectant (HLD) will:

  • [ ] Kill all types of bacteria

  • [✓] Kill all microorganisms but not spores (CORRECT)

  • [ ] Kill only viruses

  • [ ] Kill only spores

Question 13

Emergency (flash) sterilizers is not recommended as a routine sterilization method because of the

  • [ ] possibility for contamination of processed items during transportation

  • [ ] Absence of protective packaging following sterilization

  • [ ] Lack of timely biological indicators

  • [✓] All the above (CORRECT)

Question 14

All of the following can be sterilized by a hot air oven EXCEPT:

  • [ ] powder

  • [ ] petroleum oil

  • [ ] metal

  • [✓] Linen (CORRECT)

Question 15

Which is correct regarding Hydrogen peroxide plasma?

  • [ ] Plasma is a state of matter distinguishable from solid, liquid, or gas.

  • [ ] The plasma and vapor phase of hydrogen peroxide are highly sporicidal.

  • [ ] Hydrogen peroxide is activated to create a reactive plasma or vapor.

  • [✓] All of the above are correct. (CORRECT)

Last modified: Sunday, 18 October 2026, 7:02 AM