CBIC CBIC Sterilization and Disinfection

Question 1

Which level of disinfection is required for semi-critical medical devices that contact mucous membranes but do not penetrate sterile tissue?

Accepted Answer

High-level disinfection

Answer

Low-level disinfection

Answer

Sterilization

Answer

Intermediate-level disinfection

Question 2

According to the Spaulding classification, which category includes items that enter sterile tissue or the vascular system?

Accepted Answer

Critical

Answer

Non-critical

Answer

Semi-critical

Answer

Intermediate

Question 3

What is the minimum exposure time for steam sterilization (gravity cycle) at 250°F (121°C) for wrapped instruments?

Accepted Answer

30 minutes

Answer

10 minutes

Answer

15 minutes

Answer

45 minutes

Question 4

Which chemical indicator type confirms that a sterilization process has achieved the required parameters (time, temperature, and steam)?

Accepted Answer

Class 5 integrating indicator

Answer

Class 1 process indicator

Answer

Class 3 single-variable indicator

Answer

Class 6 emulating indicator

Question 5

Which of the following is the most reliable method to verify sterilization efficacy?

Accepted Answer

Biological indicator using Geobacillus stearothermophilus

Answer

Chemical indicator strips

Answer

Bowie-Dick test

Answer

Temperature recording chart

Question 6

What action should be taken when a biological indicator returns a positive result after sterilization?

Accepted Answer

Recall all items from that load and investigate

Answer

Repeat the biological indicator test only

Answer

Release the load and retest

Answer

Increase sterilizer temperature for the next cycle