CSSD - Central Sterile Services Department Sterile Storage and Distribution Questions and Answers — 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?
- Place the new items in front of the older items for ease of access.
- Move the older items to the back and place the new items in the front.
- Place the new items behind the older items, ensuring the older items are used first. (Correct answer)
- Stack the new items on top of the older items to save space.
Correct answer: Place the new items behind the older items, ensuring the older items are used first.
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?
- Temperature below 68°F (20°C), humidity 30%-60%, and negative air pressure.
- Temperature up to 75°F (24°C), humidity less than 70%, and positive air pressure. (Correct answer)
- Temperature up to 80°F (27°C), humidity above 70%, and positive air pressure.
- Temperature up to 75°F (24°C), humidity below 20%, and neutral air pressure.
Correct answer: Temperature up to 75°F (24°C), humidity less than 70%, and positive air pressure.
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?
- Shelving must be made of porous material like unsealed wood.
- The bottom shelf must be a solid surface at least 8-10 inches from the floor. (Correct answer)
- Items can be stored directly on the floor as long as it is a designated 'clean area'.
- The top shelf must be within 6 inches of the ceiling sprinkler heads.
Correct answer: The bottom shelf must be a solid surface at least 8-10 inches from the floor.
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?
- Place the items on an open cart and transport them quickly through the hallways.
- Use a dedicated, covered or enclosed cart and ensure the cover remains in place during transport. (Correct answer)
- Carry the trays by hand to maintain constant control over them.
- Place the items in a standard linen cart along with clean linens to save trips.
Correct answer: Use a dedicated, covered or enclosed cart and ensure the cover remains in place during transport.
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?
- A package's expiration date printed on the label has passed.
- The package is handled multiple times with clean, dry hands.
- A water droplet is found on the outer surface of a wrapped tray. (Correct answer)
- The package is stored in a controlled environment for over one year.
Correct answer: A water droplet is found on the outer surface of a wrapped tray.
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.
Question 6: When managing sterile storage, which of the following practices is essential for maintaining the sterility and integrity of supplies?
- Using rubber bands to bundle peel pouches together for better organization.
- Storing sterile items in their original cardboard shipping boxes.
- Limiting access to the sterile storage area to authorized personnel only. (Correct answer)
- Stacking heavy instrument trays on top of lighter, more delicate packages.
Correct answer: Limiting access to the sterile storage area to authorized personnel only.
Restricting traffic in the sterile storage area to authorized personnel minimizes airborne contaminants and reduces the chance of accidental damage or improper handling of sterile packages. It is a fundamental principle of maintaining a controlled, clean environment.
CSSD - Central Sterile Services Department Sterile Storage and Distribution Questions and Answers
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?