Packaging and Sterile Barrier Systems Flashcards
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Which characteristic of packaging material is most critical for maintaining sterility during long-term storage?
Answer: Microbial barrier effectiveness
The primary function of sterile packaging is to maintain an effective microbial barrier throughout the shelf life of the item.
When a peel pouch is heat-sealed, which factor most directly affects seal integrity?
Answer: Temperature, pressure, and dwell time of the sealer
Proper heat sealing requires correct temperature, pressure, and dwell time to create a hermetic, tamper-evident seal.
What is the purpose of the chemical indicator integrated into sterilization packaging materials?
Answer: To distinguish processed from unprocessed items
Integrated chemical indicators (process indicators/Type 1) only distinguish processed packs from unprocessed ones; they do not confirm sterilization.
A rigid sterilization container system must be inspected before use. Which finding would require the container to be removed from service?
Answer: A cracked or broken lid gasket
A damaged gasket compromises the filter integrity and sterile barrier, requiring the container to be removed from service and repaired.
According to ANSI/AAMI standards, what minimum seal width is recommended for heat-sealed peel pouches?
Answer: 3 mm
ANSI/AAMI ST79 recommends a minimum seal width of approximately 3 mm to ensure adequate seal integrity for peel pouches.
Which packaging configuration is MOST appropriate for an instrument set that weighs 11 kg (25 lbs)?
Answer: Double-layer nonwoven wrap or a rigid container
Heavy instrument sets require robust packaging such as double-wrapped nonwoven or rigid containers to prevent puncture and maintain sterile integrity.
What does the term 'shelf life' refer to in the context of sterile packaging?
Answer: The period during which a packaged item is considered sterile if the integrity is maintained
Shelf life is event-related, meaning sterility is maintained as long as the package integrity is intact, regardless of time.