CSSD - Central Sterile Services Department Sterile Storage and Distribution Questions and Answers

Question 1

A CSSD technician is placing newly sterilized items onto the storage shelves. They notice a wrapped tray from the previous day at the front of the shelf. What is the correct stock rotation practice they should follow?

Accepted Answer

Place the new items behind the older items, ensuring the older items are used first.

Answer

The correct practice is "First-In, First-Out" (FIFO), which ensures that the oldest sterile supplies are used before newer ones. This involves placing new stock behind existing stock so that the items stored first are the first ones to be distributed and used.

Question 2

According to AAMI ST79, which of the following represents the recommended environmental conditions for a sterile storage area?

Accepted Answer

Temperature up to 75°F (24°C), humidity less than 70%, and positive air pressure.

Answer

AAMI ST79 recommends specific environmental controls for sterile storage. This includes a temperature of up to 75°F (24°C), relative humidity of less than 70%, and positive air pressure relative to adjacent areas to prevent airborne contaminants from entering when doors are opened.

Question 3

Which of the following is a critical requirement for shelving used in the sterile storage area to prevent contamination?

Accepted Answer

The bottom shelf must be a solid surface at least 8-10 inches from the floor.

Answer

To facilitate cleaning and prevent contamination from floor-level activities, sterile items must be stored on shelves that are at least 8-10 inches off the floor. The bottom shelf should be solid to protect items from splashes during cleaning.

Question 4

A sterile processing technician needs to transport a cart of sterile instrument trays from the CSSD to the operating room several floors away. What is the most appropriate method for transporting these items?

Accepted Answer

Use a dedicated, covered or enclosed cart and ensure the cover remains in place during transport.

Answer

Sterile items must be protected from environmental contaminants, physical damage, and moisture during transport. A dedicated, closed or covered cart is the standard method to ensure items arrive at the point of use in a sterile condition.

Question 5

The concept of event-related sterility dictates that a product remains sterile until a specific event occurs that compromises its integrity. Which of the following is considered a contamination event?

Accepted Answer

A water droplet is found on the outer surface of a wrapped tray.

Answer

Moisture is a primary vehicle for microorganisms to travel through a package's barrier material (a process called wicking), compromising sterility. Any evidence of moisture on a sterile package means it must be considered contaminated.

CSSD - Central Sterile Services Department Practice Test

CSSD - Central Sterile Services Department Practice Test

CSSD - Central Sterile Services Department Sterile Storage and Distribution Questions and Answers