NURS 236 - Midterm 2 Exam Questions
and Answers
Sterilization - Ans:-removing and destroying all MOs (including endospores)
Example: Cleaning of surgical instruments
Disinfection - Ans:-treatment that kills or inhibits the growth of harmful MOS
Example: cleaning a hospital room between patient...
Physical Methods - Dry Heat - Ans:✔✔-flaming, incineration, hot air sterilization
Physical Methods - Low Heat - Ans:✔✔-depends on what is being sterilized.
4C - -20C
Physical Methods - Filtration - Ans:✔✔-physical separation of of MOs out of a sample based on size
Only liquids or gases
Health environments use HEPA (high efficiency particulate air) Filters
Membrane sterilization of liquids --> heat sensitive
Physical Methods - Dessication - Ans:✔✔-removing water needed for survival, many go dormant
the state of extreme dryness
Neissaria gonorrhae - 1h
Mycobacterium tuberculosis - months
Endospores - centuries
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