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CNIH BIO 140 chapters 12 & 13 quiz Exam 2024/2025 Questions With Completed & Verified Solutions.
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CNIH BIO 140 chapters 12 & 13 quiz Exam 2024/2025 Questions With Completed & Verified Solutions.
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CNIH BIO 140 chapters 12 & 13 quiz1. How should one load a sterilizer?
A. Place the packages on their edges.
B. Pack the packages tight to eliminate as much air as possible.
C. Stack the packages on top of the other.
D. Put only one package at a time in the sterilizer. - ANS A. Place the packages on their edges.
2. The rationale for packaging instruments before placing them into a sterilizer is to:
A. eliminate water spots
B. maintain their sterility after sterilization
C. prevent rusting of carbon steel items
D. reduce by half the time needed at the sterilizing temperature - ANS B. maintain their stability
after sterilization
3. Spores of Geobacillus stearothermophilus are used to monitor what types of sterilizers?
A. Steam and dry heat
B. Unsaturated chemical vapor and dry heat
C. Unsaturated chemical vapor and steam - ANS C. Unsaturated chemical vapor and steam
4. What type of sterilization causes steel instruments to rust?
A. Steam
B. Dry heat
C. Unsaturated chemical vapor
D. Ethylene oxide gas - ANS A. Steam
5. How should one sterilize a plastic rubber dam frame?
A. Steam
B. Dry heat
C. Unsaturated chemical vapor
D. Liquid sterilant such as glutaraldehyde - ANS D. Liquid sterilant such as glutaraldehyde
6. Spores of Bacillus atrophaeus are used to monitor what type of sterilizer?
A. Steam
B. Dry heat
C. Unsaturated chemical vapor - ANS B. Dry heat
7. A chemical indicator provides that an item
, A. is sterile
B. is clean
C. has been packaged properly
D. has been processed through a heat sterilizer - ANS D. has been processsed through a heat
sterilizer
8. The leading cause of sterilization failure is:
A. not punching the correct buttons to operate the sterilizer
B. using the wrong type of sterilizer for heat-sensitivite items
C. overloading the sterilizer - ANS C. overloading the sterilizer
9. The purpose of an aluminum an aluminum foil test is to:
A. see if the steam in a sterilizer is at the proper temperature
D. determine whether an ultrasonic cleaner chamber has an even distribution of sonic energy -
ANS D. determine whether an ultrasonic cleaner chamber has an even distribution of sonic
energy
10. The main rationale for cleaning instrument before sterilization is to:
A. give the sterilization precedure the best chance to work
B. prevent the formation of water spots on the instruments
C. reduce rusting of instruments - ANS A. give the sterilization procedure the best chance to
work
11. Placing wet instrument into a dry heat sterilizer or an unsaturated chemical vapor sterilizer
can:
A. prevent sterilization
B. reduce the sterilization time by half
C. counteract the antirusting nature of these sterilizers - ANS C. counteract the antirusting
nature of these sterilizers
12. Instrument package are wet after the sterilization portion of which of the fallowing sterilizer
cycles?
A. Dry heat
B. Steam
C. Unsaturated chemical vapor - ANS B. Steam
13. Wet packages should be allowed to dry inside the sterilizer because paper packaging
material may tear on handling and because:
A. the instruments will have water spots
B. the chemical indicators will not have changed color yet
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