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NBSTSA Review (Sterilization & Microbiology) question well answered 2023
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NBSTSA Review (Sterilization & Microbiology)
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NBSTSA Review (Sterilization & Microbiology)Which of the following situations would present a problem when preparing instruments for sterilization using a paper-plastic peel pack?
A. The instruments within the paper-plastic peel pack have been held together with tape to avoid shifting.
B. The instruments should be placed in the paper-plastic peel pack with the rings at the end that was sealed by the manufacturer.
C. A Felt-tip marker was used to label the plastic on the paper-plastic peel pack prior to sterilization.
D. The open end of the paper-plastic peel pack has been sealed with tape. - correct answer A. The instruments within the paper-plastic peel pack have been held together with tape to avoid shifting.
Which of the following spore-forming microorganisms are used as biological monitors for checking steam
sterilization effectiveness for a load of instruments in a rigid container?
A. Mycobacterium tuberculosis
B. Bacillus stearothermophilus
C. Streptococcus pyogenes
D. Bacillus atrophaeus - correct answer B. Bacillus stearothermophilus
Bacillus stearothermophilus, a highly heat-resistant, spore-forming microorganism that does not produce
toxins and is non-pathogenic, is used as the biological monitor for steam sterilization.
Bacillus atrophaeus is a biological monitor used for ethylene oxide sterilization.
Mycobacterium tuberculosis is not used for biological monitoring.
Streptococci pyogenes is not used for biological monitoring. If two basins are wrapped together for sterilizing, they should be packaged with one basin:
A. stacked inside the other and wrapped in a towel
B. stacked inside the other and separated by a towel
C. stacked inside the other and separated by impervious material
D. on its side and the other upside down - correct answer B. stacked inside the other and separated by a towel
What are the maximum dimensions for a muslin wrapped pack?
A. 12 x 12 x 20
B. 14 x 16 x 24
C. 16 x 18 x 22
D. 18 x 4 x 20 - correct answer A. 12 x 12 x 20
While removing peel pack instruments from the sterilizer, a surgical technologist notices several of the packaged have ruptured. Which of the following would MOST likely be the cause of this?
A. The instruments in the pouch were too heavy
B. The air was not evacuated from the pouch
C. The package was sterilized too long
D. The temperature of the autoclave was too high - correct answer B. The air was not evacuated from the
pouch
What is the minimum exposure time for unwrapped instruments with no lumens in a flash sterilizer set at 270˚F?
A. 5 minutes
B. 7 minutes
C. 2 minutes
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