CSSD - Central Sterile Services Department Quality Assurance and Monitoring Questions and Answers

Question 1

A CSSD manager is notified that a biological indicator from a steam sterilization load processed 24 hours ago has tested positive.
The load contained instrument sets that have already been sent to various hospital departments.
What is the immediate and most critical first step in the quality assurance process?

Accepted Answer

Initiate a recall of all items from that specific load.

Answer

Document the failure in the department's quality log.

Answer

Immediately take the sterilizer out of service for maintenance.

Answer

Run three consecutive empty cycles with new biological indicators.

Question 2

Which of the following quality assurance tests is specifically designed to verify the effectiveness of a mechanical washer-disinfector's cleaning process by detecting residual protein soils invisible to the naked eye?

Accepted Answer

Residual protein test

Answer

Bowie-Dick test

Answer

Biological Indicator (BI) test

Answer

Chemical integrator test

Question 3

After several instances of "wet packs" were identified from a specific steam sterilizer, the CSSD team performed a root cause analysis. They discovered that newly trained technicians were incorrectly loading the sterilizer cart, placing heavy, dense trays flat on the bottom shelves, blocking the chamber drain. This is an example of a failure in which part of the quality system?

Accepted Answer

Personnel competency and training

Answer

Equipment calibration

Answer

Utility supply management

Answer

Product packaging selection

Question 4

A Bowie-Dick test is performed daily on a dynamic-air-removal steam sterilizer. The technician observes that the test sheet shows an uneven color change, with the center of the sheet remaining a lighter color than the edges. What does this result indicate?

Accepted Answer

There was an air removal failure in the chamber.

Answer

The sterilizer reached the correct temperature but not the correct pressure.

Answer

The cycle was successful and the sterilizer is ready for use.

Answer

The chemical indicator on the test sheet was expired.

Question 5

According to AAMI standards, which of the following pieces of information is NOT a required component of the documentation for each sterilization load?

Accepted Answer

The name of the surgeon who will use the instruments.

Answer

The load control number and sterilizer identification.

Answer

The results of the physical, chemical, and biological monitors.

Answer

The exposure time and temperature achieved during the cycle.

Question 6

The quality of water used for the final rinse in device reprocessing is critical. According to AAMI ST108 (which supersedes TIR34), what is the primary reason for strictly controlling the level of chlorides in the water?

Accepted Answer

To prevent corrosion, staining, and pitting of stainless steel instruments.

Answer

To prevent the growth of thermophilic bacteria.

Answer

To enhance the effectiveness of detergents in the wash cycle.

Answer

To reduce the formation of hard water scale on equipment.