Free MDRAO Assembly and Packaging Systems Questions and Answers — Questions and Answers
Question 1: When assembling an instrument tray, what is the most important function of the inspection process?
- To ensure the tray is not too heavy
- To verify the cleanliness, function, and integrity of each instrument (Correct answer)
- To count the instruments to match the inventory list
- To arrange the instruments neatly
Correct answer: To verify the cleanliness, function, and integrity of each instrument
While counting and neatness are important, the primary function of inspection is to ensure patient safety. This involves checking each instrument for residual soil (cleanliness), proper working order (function, e.g., scissors cut, forceps align), and damage like cracks or rust (integrity).
Question 2: Which of the following is an unacceptable packaging material for steam sterilization?
- Woven textiles
- Non-woven polypropylene wrap
- Polyethylene (plastic) pouches (Correct answer)
- Rigid sterilization containers
Correct answer: Polyethylene (plastic) pouches
Polyethylene, a common type of plastic, cannot withstand the high temperatures of steam sterilization and will melt. Packaging materials must be able to withstand the sterilization process while also allowing the sterilant to penetrate and then maintaining sterility afterward.
Question 3: According to CSA standards, what is the generally accepted maximum weight for a wrapped instrument tray?
- 5 kg (11 lbs)
- 11.4 kg (25 lbs) (Correct answer)
- 15 kg (33 lbs)
- 20 kg (44 lbs)
Correct answer: 11.4 kg (25 lbs)
The CSA standard Z314 sets the maximum weight for wrapped instrument trays at 11.4 kg (25 lbs). This limit is based on ergonomic safety for staff and ensuring effective sterilant penetration and drying within the sterilizer.
Question 4: Where should a Type 5 internal chemical indicator be placed within an instrument tray?
- On the very top of the instruments
- Taped to the outside of the wrap
- In the geometric center or most challenging location for sterilant penetration (Correct answer)
- Only in trays containing implants
Correct answer: In the geometric center or most challenging location for sterilant penetration
The internal chemical indicator's purpose is to verify that sterilant reached the most difficult-to-sterilize area of the pack. Placing it in the center or the area of greatest density ensures that if it passes, it's highly likely the entire contents of the tray were exposed to the proper conditions.
Question 5: When double-pouching items for sterilization, how should the inner pouch be placed relative to the outer pouch?
- Paper side to paper side
- Plastic side to plastic side
- Paper side of the inner pouch to the plastic side of the outer pouch (Correct answer)
- It does not matter how they are oriented
Correct answer: Paper side of the inner pouch to the plastic side of the outer pouch
The correct method is paper-to-plastic (or film). This orientation ensures that the sterilant can penetrate through the paper side of the outer pouch and then the paper side of the inner pouch. It also allows for aseptic presentation, as the inner pouch can be clearly seen and removed without contamination.
Question 6: What is a key advantage of using rigid sterilization containers over wrapped trays?
- They are lighter than wrapped trays
- They do not require chemical indicators
- They provide superior protection against physical damage during transport and storage (Correct answer)
- They can be processed in any type of sterilizer
Correct answer: They provide superior protection against physical damage during transport and storage
The hard, sealed shell of a rigid container offers excellent protection for delicate instruments, preventing damage from impact or compression. This helps maintain the integrity of both the instruments and the sterile barrier system, reducing the risk of contamination.
Question 7: At a minimum, what information must be included on the label of a sterilized package?
- The name of the technician who assembled it and the date
- A description of the contents, sterilizer ID, load number, and expiration date (Correct answer)
- The surgeon's name and the procedure time
- The weight of the tray and the cycle number
Correct answer: A description of the contents, sterilizer ID, load number, and expiration date
Proper labeling is crucial for tracking and quality assurance. A label must clearly identify the contents, the specific sterilizer used, the unique load number for that sterilizer on that day, and the expiration date (or a statement of event-related sterility), allowing for a full recall if a sterilization failure is detected.
Free MDRAO Assembly and Packaging Systems Questions and Answers
When assembling an instrument tray, what is the most important function of the inspection process?