Which of the following indicates the minimum time a tracheostomy inner cannula should be soaked in 3% hydrogen peroxide to be an effective disinfectant during a patient's tracheostomy care?

a. 1 minute c. 10 minutes
b. 5 minutes d. 15 minutes

ANS: C
Commercially available 3% solutions of hydrogen peroxide are effective disinfectants of bacteria (including Mycobacteria sp.), fungi, and viruses and are active within 10 minutes at room tem-perature. To be effective against spores, the solution would need to be at 50° C and the equip-ment would need to be soaked for at least 20 minutes.

Health Professions

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