CBET Sterilization and Infection Control Equipment

Question 1

What is the standard sterilization temperature and time for a gravity displacement steam autoclave at 121°C?

Accepted Answer

15 minutes

Answer

30 minutes

Answer

45 minutes

Answer

60 minutes

Question 2

Which Spaulding classification category requires sterilization rather than just high-level disinfection?

Accepted Answer

Critical items

Answer

Noncritical items

Answer

Semicritical items

Answer

General-use items

Question 3

What is the primary biological indicator used to validate steam sterilization processes?

Accepted Answer

Geobacillus stearothermophilus spores

Answer

Bacillus subtilis spores

Answer

Clostridium sporogenes spores

Answer

Bacillus cereus spores

Question 4

A BIOMED technician is testing an EtO (ethylene oxide) sterilizer. Which parameter is NOT critical to monitor during the EtO cycle?

Accepted Answer

UV light exposure

Answer

Gas concentration

Answer

Temperature

Answer

Humidity

Question 5

What does a positive result on a Bowie-Dick test indicate?

Accepted Answer

Air removal failure in the pre-vacuum autoclave

Answer

Successful sterilization of the load

Answer

Biological indicator growth detected

Answer

Chemical indicator color change failed

Question 6

Which sterilization method is most appropriate for heat-sensitive endoscopes?

Accepted Answer

Low-temperature hydrogen peroxide plasma

Answer

Steam autoclave at 134°C

Answer

Dry heat oven at 160°C

Answer

Ethylene oxide at 60°C

Question 7

When performing preventive maintenance on an autoclave, what should the BIOMED technician check first after a reported cycle abort?

Accepted Answer

The printout or cycle log for the fault code

Answer

The biological indicator results

Answer

The chemical indicators in the last load

Answer

The door gasket for wear