Infection ControlQuestion 69 of 100
An office sterilizes carbon steel cutting instruments that rust in a steam autoclave. Which method is most appropriate?
a.Dry heat sterilization at approximately 320°F (160°C) for one to two hours
b.Soaking in an intermediate-level surface disinfectant for ten minutes
c.Wiping with 70 percent isopropyl alcohol
d.Rinsing in hot tap water and air drying
Explanation
Dry heat at about 320°F for one to two hours sterilizes without moisture, which protects carbon steel from corrosion and dulling. Surface disinfectants and alcohol wipes are not sterilants and cannot be used on instruments that penetrate tissue. Hot tap water and air drying accomplish neither cleaning nor sterilization.
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