SterilizationCâu 54 / 100
A student asks a technician what it means when a process is described as achieving a sterility assurance level of 10 to the minus 6. What is the correct explanation?
a.Six log reductions of bioburden have occurred during the cycle
b.The probability that a single item remains nonsterile after processing is one in one million
c.Six biological indicators must be run in every load
d.The sterilant concentration is one part per million at the end of the cycle
Giải thích
SAL is a probability statement about the likelihood that a viable microorganism survives on a processed item, and 10 to the minus 6 is the accepted level for devices intended for sterile use. It is not a count of log reductions achieved, although the two concepts are mathematically related through the starting bioburden. It has nothing to do with the number of indicators used or with residual sterilant concentration.
Trích dẫn luật: AAMI ST79Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Rigid sterilization containers are being loaded into a steam sterilizer along with wrapped trays. What is correct practice?
- A technician notices the sterilizer printout shows the chamber reached only 268 degrees F during a cycle set for 270 degrees F, although the chemical indicator changed color. What should be done?
- Why must instruments with hinges, such as hemostats, be placed in the sterilizer in the open, unlocked position?
- A technician is loading a steam sterilizer and wants to fit as many trays as possible before the shift ends. How full should the chamber be loaded?
- A liquid chemical sterilant such as peracetic acid is used to process a device. What is the key limitation of this method?
- An instrument manufacturer's instructions for use specify a prevacuum cycle at 270 degrees F for 4 minutes with an 8-minute dry time, but department policy uses a 30-minute dry time for all trays. Which should be followed?
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