Infection ControlCâu 66 / 100
Which organism is used in the spore test that verifies a steam autoclave is working?
a.Staphylococcus aureus
b.Mycobacterium tuberculosis
c.Geobacillus stearothermophilus
d.Escherichia coli
Giải thích
Geobacillus stearothermophilus spores are highly heat resistant and are used to challenge steam autoclaves and unsaturated chemical vapor sterilizers. Staphylococcus aureus and Escherichia coli are vegetative bacteria that are killed easily and cannot verify a sterilization cycle. Mycobacterium tuberculosis is used as a benchmark for disinfectant potency, not as a sterilizer spore test.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Why is an ultrasonic cleaner or instrument washer preferred over hand scrubbing contaminated instruments?
- Which gloves should be worn when cleaning contaminated instruments and disinfecting operatory surfaces?
- How often should a dental office perform biological (spore) monitoring of each sterilizer?
- An assistant sees that the tape on a sterilization pouch has changed color and concludes the instruments inside are sterile. Why is that conclusion wrong?
- Which set of parameters describes a typical steam autoclave cycle for wrapped instruments?
- An office sterilizes carbon steel cutting instruments that rust in a steam autoclave. Which method is most appropriate?
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